I've forgotten a radio on occasion.. All the charging up(including backup receiver batteries, 3-4 glow starters, two starterboxes, and on and on...), packing up(tools, spares, etc..), then packing up the car, driving out to the place you're going to run, unpacking, laying everything out, turning on the box and pressing it to make sure it sounds good, then going to grab your radio for the first start-up... "Where's my radio?"
Often the whole process prior to this btw is further complicated by persuading(which sometimes means "bribing") and coordinating with the wife to come along...
Which reminds me of another pet peeve.. Not having a camera-man/-woman. My wife's enthusiasm for filming has declined somewhat precipitously in the last few years(understandably, I guess.. I don't like hanging out in shoe stores either..) So not having a filmerer and just having to put the camera on the ground is definitely a pet peeve. Last year I took both LST2's out, and honestly was nailing the best, biggest, longest, fastest backflips off the ramp ever.. And in the video all the good ones were missed, out of the frame... [
] Then, OF COURSE........................., after going home, and bringing the wife out later that afternoon, all rushed and eager, I bunged up the jumps, broke stuff, etc.. [:@] That really sucked..