Am I the only one whose camera decides to play silly buggers at that crucial moment?

It happened again last night...I was all set during Bad Medicine. Jon walks over (I'm well chuffed as I have a clear shot)..I press the button...and....nothing!!!! When I did get it working I ended up with 5 seconds of video of him walking back to the stage!!

I think some confetti must have got into the camera during 'Captain Crash' and messed it up...but that's another story