I don't mind my own failures. If I pull the darkslide before closing the shutter, or something, it's annoying, but in the end I have no one to blame but myself and it gets filed under "wow, for someone pretty smart I can be pretty stupid!"---which is a VERY large mental file, by the way.

But speedboats and seagulls and clouds? *They're* doing it on purpose! That's what really gets my goat: the perversity of elements over which I have no control.