And he came home one evening and he told this story.

He came in and announced, you guys, you will not believe what happened in the emergency room tonight during our shift.

A patient came in with a gerbil lodged in his rectum.

Of course, you know, waiting for the response, which was one of utter disbelief and shock and amazement and hilarity.

It reminds Mark of stories about the music business.

There's Stevie Nicks in the recording studio having cocaine blowing up her butt through like a hula hoop that's been cut in half or whatever it was.

I always heard that was the delivery system and that some poor studio assistant was given that job.

I mean, patently.

Can you perhaps pick a favorite painting and describe what it looks like, what his style was, or at least one of his styles to help us picture that?

Wow, what a tough question that is because he never stopped evolving.

I mean, he was a master of color.

And I say that with also wanting to acknowledge his immense skill and virtuosity as a draftsman.

So behind all the experiments with color, there was some serious architecture in terms of line behind it all.

Among my favorites, I would have to say is, boy, the double portrait that he did of his good friends Celia Birtwell and Ossie Clark in the early 70s.

They're in a London interior.

Where does he sit kind of in the world of or the history of art? What will he be most remembered for?