It's not a lot of fun if you get kettled, on the wrong side of a crowd surge, or anywhere near tear gas, though. Tear gas admittedly unlikely at a small London demo.
Uh, there's nothing wrong with being aware. May Day can still get a bit out of hand, for example although admittedly they're nothing like 10-15 years ago. London demos have gotten quite tame I guess.
It's not a lot of fun if you get kettled, on the wrong side of a crowd surge, or anywhere near tear gas, though. Tear gas admittedly unlikely at a small London demo.