If you've read my blog on puns that I wrote a couple years back, you'll know I'm always on a quest for that Holy Grail of comedy, a truly original joke. The pun above is pretty obvious I thought, so I looked online but couldn't find a cartoon that was exactly the same angle I've gone for here, so maybe this is one step closer.
Anyway, I had so much fun drawing this last night, I just had to post it straight away. Hope you enjoy! I did.