This being Ycombinator, it's worth noting that the easiest way to offend an investor is to ride up in a luxury or sports automobile. I once lost an investor who

This being Ycombinator, it's worth noting that the easiest way to offend an investor is to ride up in a luxury or sports automobile. I once lost an investor who visited on a weekend and saw a Jaguar parked near the entrance of my building in a nearly-empty lot. Of course, the Jaguar belonged to the building's owner and had nothing to do with me, but also, of course, the investor didn't mention it as I was walking him to his car (so I could explain) --just weeks later through intermediaries.