Go with him

You don't want to offend him now, so you agree to go with him. He walks you to his car which is parked just off the road and after a long drive you arrive at a house out in the woods and in the middle of nowhere. You follow him into the house and after a short time he comes out with some cocaine already cut into lines.

"Here you go." He says handing you a tube. "Try a line or two."

You don't want to make him think you're lying to him but you've never tried coke before, and you've only just convinced him you were not a cop.