When you're riding to work, minding your own business and the car in the left hand lane decides they want to change into your lane on top of you. No real biggy because i'd seen her start to move and was already slowing down to get out of her way while on the horn. She took no real notice and moved over anyway with no acknowledgment that i was ever there. Then the lights ahead went red... "You beauty i thought, she is going to cop an ear bashing", pulled up next to her window and gestured for her to put it down, lifted my visor and lent down to unleash my tirade... only to see that she was one of our patients from the clinic... DOH! So a tirade turned into, "Hi how are you, see you soon!". I'll make sure to have a quiet word with her next time she's in on why one flash of the indicator, no mirror and no head check doesn't cut it!