Thanks, all.
Well recognised, jjj: Sacré Coeur it was. He gave a very impressive display, which involved taking off his T-shirt, doing various acrobatics, and putting the shirt back on, all the while not dropping the football. I was initially sceptical but stayed to watch, and I'm very glad I did. He was so much better than the talentless, out-of-tune, guitar-strumming pseudo-singers with loud recorded backing tracks who infest the area; I put a generous contribution in his hat.
I expect he climbed, stamper; it's not all that high, and he's quite well-muscled, as you can see.
I've a couple more which I'll dig out when I get back home.
Jeremy
