After I finished coloring this one, I decided I wasn't really fond of the caption I'd come up with. So I turn to you, dear readers, to supply a punch line for this cartoon.
If you have a caption, you can leave it in the comments, email me or send a carrier pigeon — any which way will do!
I'll run the winning caption on Sunday, and who knows? There may even be a prize for the person who comes up with the winning caption.