I would apologize for the late strip, but only one person reads this thing, so I will apologize when I talk to him tomorrow.
Pig is in fact rather un-intelligent. Once his brain ran away and Rat used his head a a beer cooler. But I don't think he is dumb enough to get a kick out of running into walls.
How do you like the new format? I like it, but not sure if I will use it for all strips or not. It is nice for more visual gags and from a timing stand point, but it might be hard for strips like #2 and 3 to be done like this. I might experiment with redoing them to try it out. Either way, it works well here.