Fishing for puns, jokes, and other silliness

I'm not familiar with this joke.  Could you explain it to me, as a sacrifice to the ziggurat?

I loved Micheal Palin's around the world in 80 days, that was a great show.  How did you meet him?

Not terribly exciting, it was at a book signing. He's a really nice guy.

I'm just unnecessarily proud to have shaken the hand of one of the Pythons. Incidentally he was born about 10 miles away from my home town.

I'm also boastful that I've had a drink with Craig Charles (Lister from Red Dwarf), who signed my breast (his idea). Also a nice guy, very funny and friendly.

My dad's friend and bandmate wrote Every Sperm is Sacred...