Safe words

I'm curious, what are your safe words?

New partner and I were discussing it and I for the life of me couldn't think of a good one that 1) I'd remember in the moment, and 2) wouldn't be said accidentally in the course of things.

We settled on "bananas", which makes me lol since he says it " bawnawnaw" and I say it "bahnahnuh". Not to mention I'm deathly allergic to them :p