Do you take this sh&t seriously-- as in thanks for the gift (so sweet) or do you think somebody's trying to tell you something? (Like, you're sh&tty.)
So. Many. Thoughts:
"This job doesn't pay sh&t. But you can buy some."
"It's a crappy job, but someone's got to doo (doo) it."
Add your own puns... there are plenty.