I expect you're right Bonzo, and it all depends on the actual day etc. He may be quite pleasant at times, and a bit of a Nasty Thing at others. One shouldn't judge (as I did) just by watching him walk past.

I'll never forget, though, that awful interview he 'gave' with Fiona Bruce on TV. The poor lady was nearly bitten in half by his crossness and prickliness. She bravely carried on, polite and respectful, while he objected, scoffed, hinted he'd never wanted this interview anyway and so on.
I'd have stood up, turned my back and left the room. Unforgivable rudeness.