“I can't be under arrest now... I don't have time.”
“I'm placing you under arrest for murder, conspiracy to commit murder and, I don't know, possibly littering.”
“I think I might have to place you under arrest for trespassing. But I always go easy on pretty girls who confess.”
“I almost ran you down, remember? I have to be nice to you, so you don't have me arrested.”
“But we don't do things like that!" said Vimes. "You can't go around arresting the Thieves' Guild. I mean, we'd be at it all day!”
“I had to be alone for a little while, but I'm okay now.""All right. But next time, don't go where I can't find you.”