Honestly, Gintama characters are horrible to each other (Okita, see icon, constantly tries to murder Hijikata to take his position as vice-commander, to name only one... and also he's a massive sadist), so dealing with Venti being a demanding opportunist will be a walk in the park in comparison! It helps that Hijikata finds him otherwise charming (so far at least, pffff). I'm generally up for anything!