I hate it when you're crosing a road AT A CROSSING when it's the ped's right of way, and they start revving up their engines, it shits me up. I had a go at one of them once, I was pushing my kid in a pushchair at the time, on a three lane crossing where people regularly hit 50 in a 30 zone.... blah.

I've seen plenty of messengers on the road who are good riders, careful of cycles etc. But mopeds are another matter.