If you get to work one day, and there's a frog on your desk, and a job assigned to you to eat the frog, you're going to have to get it done. You can let it sit there and sit there there, but sooner or later you're going to have to eat the frog. Might as well get that job done with and move one to the next, more enjoyable, thing.

We don't eat frogs at work, but we do get many a job you'd rather put off to later.