Mine would definitely have to be Cedar Point, July 17, 2004 - it basically rained all day, so I think we got on about 5 - 6 rides. To top it all off, I decide its a good idea to climb the guard rails at Gemini since there was noone in line to get through the lines faster. Since it was still wet, I slipped, fell and managed to break both bones in my leg. So being taken out in an ambulance and having to spend several days in the Firelands regional hospital (I did get a month's vacation from work out of it, though) would be my worst time at a theme park