My secret's my enzyme.
So the person GIVING someone shit is actually TAKING the piss?"Pulling your leg?" not quite, though. That means trying to get you to believe something untrue, a little more than taking the piss does. "Giving you shit" works well, doesn't it?
"Go fuck yourself."
"Don't mind him. He's just giving you shit."
Or: "I decree today that life
Is simply TAKING [the piss] and not giving [you shit]"