I accidentally did.
Back in jr high, I was sick as hell and helped myself to Benadryl.
Thought I was taking them as directed, over a period of days. Nope. Was taking them every hour or two for part of the morning and into the afternoon. Luckily, not a lethal dose or anything.
But I was seeing some shit!
The walls were breathing, the floor had waves, and he-man came out of my TV on battlecat to talk to me. My GI Joes had a fight with COBRA, and I vaguely remember talking to Spider-Man as I was drifting off at one point.
Tripping
Balls