Yes, I know some people who climb the walls over even "good debt!" Some other people climb the walls over other things that make them uneasy, too! Sometimes when there's absolutely no reason to be concerned... It's just the way their minds are hard-wired!!! (nothing wrong with that!)
I find the people in, or who have been in business are much more used to using other people's money, especially in the Real Estate business!!! Leverage is everything to most of them!!!
That's because a generation of them grew up watching hucksters like Suze selling their Leverage books and seminars on TV...