[Click to view comic: 'Your daily dose of Innuendo']

Is this plagiarism, or is the appearance of an innuendo based on a broken appendage just a coincidence?
I'm thinking coincidence, unless Penny-Arcade start writing comics under the influence of absinth. I'd pay hard cash to see the results.
Any other coincidental comics you've noticed recently?
---
Please replace the handset, and try again.