Inspired by Clockwork's response to a recent thread:

I think somebody should start a thread, for stupid things we have done.
OK, I am game, and here are some of mine:

*Installed tires backwards (I still do this in my less “present” moments—fortunately it is pretty obvious once you put the wheel back in the frame)

*whilst in lively conversation with a customer, attempted to install her eggbeater pedal on the INSIDE of the crank (very embarrassing, but again, distraction played a key role).

*forget to tighten completely the stem bolts before test-riding someone’s lovely custom ride (can you say scary as the handlebars slip forward while braking)

*forget to put the seatpost/saddle in bike box before shipping (I still do this on occasion)

*fall on my *** moments after thinking I have perfected the “track stand”

Let's hear them...we are all incredibly human