Where did Gribouille go?

Gribouille and I typically see eye-to-eye on most issues. For instance, we both think it's fun for me to kiss his nose but for some reason he's decided he no longer wants me to pull his tail. In protest, I've decided to take over his chair. As far as I'm concerned this is a fair form of retribution. Seriously, it's just a tail, how annoying could it be? I'm sure he'll come around to my line of thinking soon enough.