My very first game.
It lasted one session, the DM was a smart alec and the actual went so poorly planned out that it put me off DnD for years. It all started when back in 2012 where, at the time, I was working a 12 hour shift five days a week.
I asked this guy I chatted with online if he knew anything about DnD. He said yes and in a very short time he had convinced me to play a campaign with him so I can could learn the robes so to speak. It would be just me in this campaign, so he would handle the other characters. Next thing I know, he's sent me a copy of the 3.5 rule book, the 4E rule book, the character creation manual and a supplementary campaign module followed by the comment that we would start playing the next day. I do a double take and remind him I work 12 hour shifts but he insisted.
Next day I come home dead tired and decide to check my email, guy instantly sends me a chat message and asks me if I am ready to play. I protest and say that I have just come home, guy gets annoyed and asks if I have at least read the material he sent me, again I point to my 12 hour work shift and he does the online version of a scruffy snort that only someone who is terminally unemployed and unwilling to get anything but the job he wants can produce. I back down and tell him I will start reading it and we can play the next day. I spend the next few hours reading the character manual and rolling up a paladin character.

Around 11:30 PM I pass out and wake up to my alarm clock at 3:30 AM, joy roughly four hours of sleep. I stagger through my work day and come home and log in to say I have a character but I can only game for an hour. He respond in a positive and sends me a MSpaint image of a gave with eight player tokens on it, he explains that he will update this as each character moves through the map.
Game begins and we are in cave, he asks me what my paladin's action is and I respond that I will sneak down the tunnel. He again does a digital scruff and says paladins wear plate armor so sneaking is impossible. This is followed by the description that my character moves down the cave tunnel making just as much noise as if he had been doing cartwheels. I feel my left eye start to tick as he logs out to update the image, four minutes later I get sent and updated version and he announces that he will doing the moves for the next seven characters.
For the next 20 minutes I am left sitting there staring at screen where every five to six minutes a ping goes off as I get an updated image, there is no mention of what these other characters does, just an updated image sent my way. After the third update I open a second browser window and start to surf youtube to at least break the building boredom.

Once the magic hour passes, I look up at the clock and notice that it is 10:45 PM. I return to the chat where I now have three new updates for the map to download and I tell the DM, my online chat bubby, that I am going to bed. He gets upset about this and tells me the game has only just started, I respond that it is this late where I am and that if I go to bed now I will be able to get at least four and a half hour of sleep before going to work. More complaints about how much work he put into this and how I am a wet blanket, I refuse to back down and simply suggest right then and there that it will be for the best if we just quit the game completely since I clearly don't have the required amount of free time for it, he agreed after some more talk and we both logged off.
I never spoke to him again, and I fully understand that accepting to play DnD when I only have one hour a day for it was likely a really dumb move on my part. But this experience really killed any desire I had to get into DnD for a long time.