Is it time to start calling out bad cyclists?

Dunno if this counts as a bad cyclist, but was waiting at set of traffic lights yesterday and saw i guy who was cycling one handed and the other hand on his mobile phone heading towards farringdon, just as i was about to caught him to him at the top of Clerkenwell road, he ended up losing control of his bike and toppled over on the floor with bits of his mobile phone on the floor, thank god he was ok, but really should be cycling and talking on the phone at the same time.

I was nearly hit by a guy BRUSHING HIS TEETH WHILE RIDING the other day. He seemed pretty chill about it. Japan has much worse - phone use is commonplace!