And, crucially, did you deserve it?
Me: Saturday afternoon cycling. Didn't trust the BMW sitting the cycling box at the lights to give me enough room to get round the corner safely (junction of Hills Road with Gonville Place, for our Cambridge readers), so I positioned like a car. A motorcyclist took great offence at this and wasn't shy about letting me know it.
Deserved? Maybe, but it was a calculated dick move for safety reasons.