I can't say it's necessarily a macho thing since I'm a woman and enjoy being one.
Spicy food is a part of my culture so I've grown up using progressively high Scoville chart toppers.
When I was about 8 years old I opened a jar of Scotch bonnet and Trinny scorpion pepper chow chow one of my grandmothers made and gifted to my mother. My sisters and I were expressly forbidden to even TOUCH the jar which of course made it that much more appealing. Opened and smelled it only and prolly received the equivalent of 3rd degree burns to my sinuses and fingers. Washed it down with another forbidden fruit, jarred maraschino cherries:S.
Ohhhhhhhh very young what will you leave us this time?
By the time I was in my twenties and Szechuan Chinese food was all the rage in NYC I astounded my ...out of culture friends by languidly eating the fiery peppers whole since they were a bit of a joke to my palette by that time.
I particularly like spicy foods when it's hot outside. Seems to cool me down. My granddaughter is a stone cold American and in this I feel sorry for her;).