I do not, in fact, use many puns. Certainly there are far fewer than people believe. But I suspect the ones I do occasionally use tend to hang around in people's memories for a while.

...All the shops have been smashed open. There was a whole bunch of people across the street helping themselves to musical instruments, can you believe that?"

"Yeah," said Rincewind. "...Luters, I expect.

He hated being thought of as one of those people that wore stupid ornamental armor. It was gilt by association.

Many people would be surprised that, in fact, I'm quite shy.

Biers was where the undead drank. And when Igor the barman was asked for a Bloody Mary, he didn't mix a metaphor.

But the helmet had gold decoration, and the bespoke armorers had made a new gleaming breastplate with useless gold ornamentation on it. Sam Vimes felt like a class traitor every time he wore it. He hated being thought of as one of those people that wore stupid ornamental armor. It was gilt by association.