the thing about tenna is that, while he's a bad boss, he's also bad at BEING a "bad boss." he uses the contracts as basically implicit threats that "if you don't follow my rules, something vaguely bad will happen!" but he doesn't know how to actually follow through on those threats at all. so anytime someone actually DOES violate his terms, he's just left floundering.
it's the same with his attempts to be physically intimidating - he does a scary pose with sharp teeth and acts all sinister so his employees will step in line, but a scary pose isn't dangerous. it's just scary.
as soon as you realize that just because something is scary, doesn't mean it can hurt you... the threats stop working.
that's why the pippinses can pretty much get away with doing whatever they want. the worst tenna can do is yell "HEY, CUT THAT OUT!", and then they don't cut that out, so he goes "...Mike, cut that out."
