Working for contractors

The conversation was about some contractor who had had a job go bad, and how he'd taken it (badly).

J---: "You shouldn't be a general contractor if you're going to go to pieces over one bad job."

T--: "Hey, S---, you've had a bad job, haven't you?"
S---: "Yeah. Workin' for you!"

E---- and I broke out laughing. S--- has a rather acerbic delivery.