One about how traumatised he was when someone bared their bum at him at a concert:

One about…well, goodness only knows what, to be honest.

I like that it contains references to the Northern Line, a tube line I had never been on when I first learned the song about ten years ago and now use on a daily basis. Is the line about to “falling so far on a silver spoon” a reference to cooking up heroin, or just, y’know, symbolism? Anyways, I think we can reasonably surmise that he was feeling a bit low when he wrote this one. And most of the others, come to that.