'Hi it's me, I'll be there in five minutes... No I'm dreading it'.
So, nosy bugger that I am, I started wondering what he was dreading... Root canal surgery (which I have to look forward to at the end of this month)? A rectal exam (which I have no plans for, thankfully)? Was he on his way to dump his girlfriend?
I was dying to turn round and ask him but, in view of the fact he had previously been chatting to the voices in his head, I decided it would be a bad idea...