Cool on a Brompton. Definite knack to it apparently. I've never been brave enough to try.
I once braked so hard on the Embankment (thought I would hit the motorcycle in front) that the back wheel folded and I ended up just sitting on the outside lane going nowhere looking like a right p&^%k. Nice repair jub needed as well. Thin line between cool and fool (or fule in Brixton, innit).
I'm on the fence on this. Defo cool for kids, but not sure about adults.
But maybe thats just cos I'm scarred to try to do them now, incase I fall off and look even more like a fool.. It has been nearly 20 years since the last time I did one. But everyday on my way home I think maybe I should give it ago. Then remeber I have a big rack on the back of the bike, and decide that it most defainatly not wise to try with that on teh back, and then when I haven't got that on teh back, I'm usualy out with my son, and don't want to look like an idiot in front of him by falling off.