here's mine(I still get a little sad!):
My family and I were out on the Missouri river enjoying a day in the boat. We were all getting hungry so my mom decided to make us all some sandwiches. She pulled a pack of lunch meat out of the cooler and was trying to open it with her teeth so I warily offered up my very first Swiss Army knife (don't remember the model, but it had alot of attachments) that I had just gotten a few months earlier for my 8th or 9th birthday. Just as she got the package of lunch meat open a wave from a passing boat rocked us a little and my mom lost her balance and as she grabbed the edge of the boat to keep from falling into the river my knife slipped out of her hand and plopped into the muddy water. I saw it happening almost in slow motion, but by the time I could react it was gone. Needless to say, that was not my favorite boating trip!