Thanks Leggy. I'll mention the pussy rub to You Know Who, ha ha ha (sorry, couldn't resist it ... as she keeps saying).
I think I'd better settle for the lucozade, as long as it's one of the sports flavours, and not the one you used to be given as a child when you were poorly.
But ... I did go for a 3 hour run this afternoon. I ran effing miles down the beach. My butt feels like ... well, you probably don't want to know really.