'Courze he does. He iz a goat. Dey bump heads to establish dominance und schtuff. Hyu bump his head like dot, hyu schowink him hyu iz like his pappa. [He smiles at Hulk, leaning in to nuzzle his nose affectionately.] He gon' do it out ov luff, hyu know.

[He doesn't look up to meet Bruces eyes at the question, shrugging his shoulders and keeping focused on the goat instead, moving his hands to massage the Hulk's skull at the base of his ears] Iz fine. Ve Jaegers, ve iz like dem rubber balls, yah? Ve bounce.