Spotted...

A courier riding some sort of folding bike shouting 'do a skid' as I was exchanging details with another cyclist who'd just knocked me off on margery street. Would have obliged if I'd still been atop the bike.

Ha! 'A courier'. Overdrive will be turning in his pre-grave. I'm the folding prince of fakengers.

Sorry to hear you'd been knocked off by another rider. My sense of timing and appropriacy are still up to scratch :/