I have never seen him do it. Very, very rare. However, pretty much every night he will spontaneously grab some ugly little kid out of the crowd to join him for the chorus to Waiting on a Sunny Day, a song so dull and generic it could be played at a wedding.
Thankfully, and not by accident, I am usually so pissed by this point that it barely registers.
Statistically, it's true. The CPS generally don't bring cases without a strong chance of conviction (unless you're a celeb accused of nonceing in which case it's open season thanks to that arse Keir Starmer).
I'm guessing that coppers would rather not taser people if they don't have to (paperwork, tedious enquiries, the possibility the cünt will croak, etc), so I would argue they're unlikely to use them unless they feel reasonably threatened or the suspect is physically resisting arrest, being aggressive or obstreperous. Thus, in a sense. the use of a taser to me indicates that there's a pretty good chance the suspect already has or is about to commit a crime.
I was in Victoria Station last week and saw armed police. Do they hang out at all the tube stations? Or just the main ones?