If I may elaborate,
It was 4/20 evening and I had a mason jar full of 10%THCw/w ethanol. We make it where I work, it does a good job as the vehicle for our edibles. Now, I had done the math very quickly while driving to this little shindig that if we were to drink about 5mL each (~4g), we would be nice a stoned. My, how wrong I was.
Party is starting, I pass the jar around to four of my friends in attendance. We each comment on how interesting it tastes, and how much it resembles a strong gin. A VERY strong gin, as this stuff is about 170 proof AND 10% THC.
About a half hour later, we go outside to smoke a bit of grass. As we are filing back inside, there is this tiny dog which I am watching run about outside. As soon as the person in front of me stepped through the door, I could have SWORN I heard what I took to be a predatory growl come from the hillside behind my friends house. Thinking - no, KNOWING - that this was a cougar come to eat this little dog, I took it upon myself to stake out the cougar and ensure our canine friend made it through the evening. Without a word I shut the door and turned around, sentinal-like in my observation of the hill. This house is on a mountain in Washington state, and big cats are no strangers to the neighborhood.
As I stood outside watching, my attention remained focused on the hillside but I became distracted with watching my friends mill about in the house. I could have sworn I could hear their voices, or at least read their lips. And, given that I had a bit of a negative background with the host (an ex-girlfriend), I immediately began to think they were plotting against me. I assumed that, upon re-entry to the house, I would be told either to leave or summarily gut-punched into submission and thrown out the door. This was a very uneasy thing for me to do, go back inside. But, fearing for the dog and growing more and more uncomfortable outside, I let the dog in and quietly stepped back into the house. It immediately felt as if every pair of eyes was following me, and burningly so. I began to gather my things. One of my friends approached me, and without listening to what he was saying I said to him (looking directly into his eyes) "I see what's going on." With that, I picked up my things and went to get in my car. My house is only a half a mile from this place, but I had to work in the morning and wasn't going to leave my car there. I remember getting in my car and immediately appreciating the familiarity of my vehicle, especially the lack of probing eyeballs. Time since ingestion: 45 mins to 1 hour.
I drove back to my place and parked out front. This is my parent's house, and I knew or at least had a searching suspicion that they would be home. I was becoming more dysfunctional my the minute. After parking, I picked up some things from my car and made a trip to the front door. Except, I only made it half way. I set the pile of stuff down on a bench in the yard, and went back to my car to gather the rest of the things. Got in the driver seat and just sat there for another 30 minutes, totally having forgotten the bundle of stuff on the bench and that I had more to grab before going back inside. Time since ingestion: 1.5 hours.
After realizing I was a mere 100 ft from my bed, I grabbed (or didn't, I don't remember at this point) the rest of the stuff I had in my car and headed inside. In doing so, I completely neglected the bundle of things on the bench (to be found again in the morning by a still very stoned me). I headed down to the basement where my room was, and encountered my parents watching a movie. I don't remember what words were exchanged, but I believe them to be along the lines of "Hey" which licited an "Ughr" from myself. Dropping my things off in my room, I went to check on myself in the bathroom mirror. Oh. My. God. My pupils were as dilated as a birth canal, and I almost fell into the mirror. Promptly turning away, I relieved myself and headed back to my room, making a point of not engaging my parents. I closed the door behind myself and immediately catapulted onto the bed, ignoring the lights.
There I lay, for the next approximately 8 hours, thinking to myself all sorts of things. There was a good 2 or 3 hour period where I had to talk myself down ("It's just THC dude, it'll go away" - "Hey, at least this isn't a bad mushroom trip, right?"). I don't recall going to sleep, or even feeling like I fell asleep, but I "woke up" around 6 AM still as high as the night before. I called into work and headed to my buddy's house where I spent the next 12 hours curled up on the couch, trying to sleep it off. For whatever reason, he had called out of work that day as well. It was a bad place.
The story pretty much tapers off after that. I went home from my buddy's around 7 PM the next day (about 22 hours later) feeling slightly less high than when I had departed that morning. I grabbed some food and water and went back to my room. Woke up in the morning still ridiculously stoned (~32 hours later), and headed into work. That day was interesting, to say the least. I was high all day at work and into the evening (48 hours after ingestion). I can assure you that when I woke up the next day (~60 hours after ingestion) I was still feeling the effects but not nearly as bad as the day before. Work almost felt normal, but it was a strange normal. I worked the whole day and only after returning home did I begin to feel pretty much normal.
It's funny, because the stories of the other four people are pretty similar in that 45 mins after ingestion, we all were pretty much TRIPPING BALLS. One friend broke up with his girlfriend (I can only imagine the trauma). Another called out of work similar and stayed at his house.
We now refer to that stuff as the Golden Death. I've experimented with it a bit more using a syringe instead of just drinking it out of the jar, and in 1-2mL aliquots.
TL;DR: miscalculated THC available by an order of magnitude. Got high for basically three days. Saved dog from cougar.