If they have a hard time organizing their thoughts in their 45-minute selling job or look to be uncomfortable in handling details, that would certainly set off the warning lights for me. Also, if they don't freely offer the names of individuals that I should speak with that can attest to why they would be a valuable person to add to any team -- that would also be a red flag.

I get my workouts in before breakfast, so for me unwinding usually involves a good dinner and a good bottle of wine with either my wife or business colleagues. I like to attend sporting events, so that is also a good way to unwind, along with a couple of beers, of course!