"Come out you Black and Tans". It's a cheerful, rousing song, but I'm damned if I'm going to sing along to a song celebrating racial hatred.

"Woman in the wall" by Beautiful South is another odd one. It sounds so cheerful, except it's not.

"One" by U2 - I can't play it, but it gets me every time I hear it. If anyone does work out an acoustic version of that, I'd love to know.

Grab.