It probably wasn't pretty...
The safest question that is not only good, but would probably evoke a good-humored and colorful answer from the man would be The One's 'stage addiction' question.
The last time Ozzy appeared on Eddie Trunk's radio show, alone, he was asked some pretty straightforward questions, and I guess Ozzy answered them too honestly, as Sharon doesn't allow Ozzy to speak to him anymore!
~T.