i used to have this ritual with a co-worker and it went on until someone (the loser) ran out of terms or reused one that had been said during a recent exchange. the kinda unspoke rule was that the tone always had to be calm/friendly, like you were gently correcting them and that the term had to be not something obviously demeaning, like "cupcake" or "sweet cheeks" or whatever.

thanks, bud

i ain't your bud, pal

i ain't your pal, friend

i ain't your friend, chief

i ain't your chief, guy

i ain't your guy, sport

i ain't your sport, boss

i ain't your boss, dude

i ain't your dude, bro

i ain't your bro, [...]

you get the idea. you play this game enough and you stock up a shitload of these terms and then, years later, an aggressive asshole who fires off a hostile "ease up, bud" and before you can even stop yourself, the real fun begins.