It’s always positive outwardly, of course, but I’m asking about the side that people rarely see. It’s hard to know what’s normal and what’s not. And that’s a problem when you’re trying to evaluate whether someone is a good fit as a cofounder.

Consider Jamie and Adam from mythbusters. They can’t stand each other. But when they work together, things get done. Are most cofounders like that, or is that the exception rather than the rule?