I don't know much about it, but apparently it's a new thing, and it's up to the referee to use it. I mean, if you're the ref and you think the defending players will behave and not try to gain inches, you don't spray.

I don't really care about sport, any sport, and I don't understand watching it on tv. Unless I'm with friends who know that I don't care, and they're ok with me making odd remarks and dumb jokes at the screen.

However, one night my dad was flipping through the channels and stumbled on a snooker match. I was oddly fascinated, had the rules explained to me, and watched till the very end, it was late too.