Mine was at my tenth birthday party when we were all playing on the bouncy castle and suddenly the power of it cut off so it started deflating and we all thought it was funny because it was sinking but suddenly it kind of collapsed (it was a slide bouncy castle) on top of us and we were buried under it and I was screaming so much because I couldn't breathe and I could here other people laughing because they were obviously in a better place than me and I kept screaming for them to help me out but they thought I was just having a laugh but I was trapped and it was so heavy on top of me and I honestly thought I was going to die in in there. I couldn't move because of the weight of it all and I was crying and screaming, I was proberbly trapped for about 2 minutes and eventually some adults came and lifter up together and I had a panic attack after I was out. It made it so much worse because I am claustophobic. I still have nightmares about it.
I have a phobia of bouncy castles now