Quote from Monica in The One in Barbados (Part 1)
Chandler: David's gonna propose to Phoebe. Monica: What? Why? Chandler: Because we were talking about ways he could beat Mike and I told him Phoebe wanted to get married. Monica: Chandler, we have talked about this. You are not supposed to give people advice. Now, couldn't you have made some sort of inappropriate joke? Chandler: I did. A penis one.