Pooldad: "Hey Jim! I brought the van in for you to take a look at that belt I told you was squeaking."
Jim: "No problem. Pull it into bay # 1 and I'll have a look."
Pooldad pulls the van in and Jim pops the hood. He pokes around for a few seconds.
Jim: "I can tell you right now what's wrong. That's the wrong belt on there. No wonder it was squeaking."
Pooldad: "That's good Jim. You're the one that installed it."