hmmm...... let's see?
1. There were the ukemi in the parking lot of the dojo during a seminar party (ouch!
2. Dropping a wooden tanto on the head of the uke whom I had just disarmed in a kotegeishi technique (ouch!
3. Getting kicked in the head after my partner did a breakfall out of my kotegeishi technique
(posture IS important... and don't defend with your face!
ooh, there's too many to list