In the comment section, Shefaly makes a good point about trying to observe the guy in social situations (i.e., not a formal interview or business meeting). I r

In the comment section, Shefaly makes a good point about trying to observe the guy in social situations (i.e., not a formal interview or business meeting). I recommend visiting a restaurant and observing how he treats the waitstaff. If he's rude or abusive to the waiter, how do you think he's going to treat you when you're his employee or partner?