Spare me!

Spare me!

Don't bother continuing to tell me that; I don't believe or care about whatever you're saying. A: "Sorry I'm late. My car broke down halfway here!" B: "Spare me! I bet you just wanted to finish watching the football game on TV." A: "I'm sorry, our hands are tied." B: "Spare me! You never intended to pay me to begin with."
See also: spare