I used to have a parakeet named Chloe that talked. His first words, when another bird of mine landed on my head (strictly against the rules, since they are not potty trained) were, "Don't DO that!" It's a phrase that I consistently used whenever any of my birds would do something I disapproved of. Chloe matched my intonation perfectly, and took to screeching that whenever he noticed any infractions on the part of his peers.

I guess I use that phrase with people, too. I did something vaguely idiotic the other night during a conversation with Mike, and he responded with, "Don't DO that!" He was mimicking me - apparently I've used that phrase on him when he's done similar idiotic things in past conversations. Same intonation. He never met Chloe, so he didn't know. I had never realized I used the phrase so regularly.

Anyhow, it struck me as funny at the time.