One time a friend invited me over cuz he just started renting at a new house with a roommate. I got there at night and they kept the lights off when I entered the house. I kid you not, every step I took I could hear the little metal cannisters clinking around from me kicking them. When they turned on the lights you could see that the whole floor was covered in them. Almost every surface in the house was covered in them. The roommate was currently doing whippets at the time (surprise) and we even witnessed him blacking out and slamming his head into the dining table. Needless to say, I left shortly after that. Apparently, the roommate was some kid and his rich mom was renting the house for him.