Help me identify a quote from a movie/tv show, please!

Ok, there's a quote I need help identifying. I don't know why it's bothering me so much, but something prompted me to recall it like a week ago, and for the life of me I can't figure out where it's from. It's like having a song you can't quite place stuck in your head for a long time - it's not that I particularly need to know what it is, but I do need to stop not knowing what it is for the sake of my sanity. Anyway, the quote is something along the lines of:

"Hell, you can hang by your thumbs for a day."

The phrasing may be off slightly (in fact, I'm guessing it is, because Google is being no help at all), and the time interval might be different - I think it was a day, but it could be a week, it could be an hour, etc. I believe it was said by a male character, in the context of being asked to continue to do something difficult, as in something like "Hey Bob, can you keep doing X for me for one more day?" "One day? Hell, you can hang by your thumbs for a day. I'll be fine."

I also have no idea what it's from. I'm pretty sure it's a movie or TV show, but that's about it. It could be something I love and I'm going to kick myself for not remembering, or it could be something that just happened to be on a TV as I wandered passed it.

Is all that vague enough for you? :P Help me SG-wan Kenobi, you're my only hope!

P.S. No hidden giveaway, sorry. I really am just trying to get this damn quote out of my head.