Pulling off

Standard, unimaginative retort to a threat of violence - "if you hit me, I'll hit you". "If you spit at me, I'll spit at you".
If someone is creeping up on you with a view to ripping the label out of your underwear, however, don't say "If you pull that off, I'll pull yours off".
If you did say that, hilarity would surely ensue.