Looks like Mr Peabody put his pen and glasses down and is tired of explaining to the father of his student why he won't regrade the boys failed exam.
That kid is a perfect match between Arnold and Maria -- you can see those Kennedy teeth... and yeah I was surprised one of Arnold's kids would be chubby.
Are you saying Arnold's son is a girly man?!! Blasphemy. Maybe you must fatten them up first, before you put them on their training regimen...did you ever think of that!