TOD
I think there were a couple of additional times, but the three that always come to mind are:
1st time, 1972 - In my last year at school while living in a nice older apartment in Cleveland Heights, a group of us ate at a jernt featuring barbecue. I don't mean authentic southern BBQ, who knows what it was. But it sure was tasty...until later that night when I woke up and it wasn't tasty going in the wrong direction. I remember how the claw-foot bathtub was right next to the terlit, and I was basically, um, using both at the same time. Repeatedly. It was horrible, and my roommates were true heroes for getting the place cleaned up the following morning while I recovered.
2nd, 1986 - Living in Schaumburg, IL for a year, I pulled a similar all-nighter flushing myself out at both ends. I mainly remember calling into the office that morning and speaking to an assistant...who had suffered the exact same thing. From that, you'd assume we were all out together at the same place the evening before, but I've never remembered anything about it, and I believe that was unlikely.
3rd, around 2000 - Right here in this house. We'd been to a fun retro-themed party at a friend's house where I'd eaten a salisbury steak TV dinner, an old standard from childhood. Actually, we don't know what to blame it on, but we blamed it on the salisbury steak because a few years after that I had it again somewhere (not in a TV dinner) and found myself feeling icky later. (I think that's as far as it went that time.) There's no earthly reason for that kind of food bothering me, and the two events had to be pure coincidence. But I do wonder what I'll do when next confronted with a choice between salisbury steak and something else...