i've read here about a problem with disc brakes, that if mounted in the wrong location on
the fork, can cause the axle to pop out of the dropouts. apparently not a common problem,
and maybe the poor dude(s) just didn't tighten their skewer. a moderate load on the
skewer shouldn't cause a problem, but i wonder how the downward force would affect
the skewer/dropout on a bumpy road. would it be possible, careening down a rough
mountain pass, to collect a darwin award?