TfL Trains and Tubes Byelaws (content.tfl.gov.uk/railway-byel...) specifically prohibit this type of behaviour:

RIP - apparently, she approved of this!

This was the seatpost on my turbo trainer bike after a couple of seasons of sweat:

Geez - the orange one finally says something I agree with. If JB had acted more decisively and supported Ukraine fully rather than his half hearted drip feeding this whole mess would probably have been over by now...

At least we know who the Daleks are supporting...