I was a kid during hyperinflation years in Brazil: 80s to early 90s, sometimes higher than 70% a month. To this day I'm very frugal, and I have a strong aversion to having debt of any kind: the only kind of debt I ever had was a mortgage and I paid them off as soon as I possibly could. I can only sleep well at night if I don't owe any money to anyone.

I cannot be sure, but I have this feeling that it is due to my formative years in that kind of environment.