I'm sure most of you have heard about the broken tv's thanks to the Wii remote's strap breaking. Here is a video of the strap breaking when the guy has it slip from his hands.
http://www.youtube.com/watch?v=RkdihGX7iWM&eurl=
Sure the easy response is "wtf why is he swinging so hard?", but I think this is something common. When ppl get in the heat of the game, or get together with buddies and beer, things like this are bound to happen, and isn't this what the wrist strap is for...to prevent flying remotes?