What's wrong with this picture? Not much.
You know your comic strip has run off the rails when the parody of it is only slightly more ridiculous than the original.
What's really interesting is the way Johnston is desperately attempting to ret-con her Foobs. Granthony's hilarious pornstache? All his evil wife's idea!
Here's a prime example of a writer losing control of her characters and forcing them to behave irrationally. You can find my musings about this situation at my other blog.