[Fun fact to lighten things up: people often call volts "velas" candles here. So e.g. "127V" and "220V" are often called "cem velas" (100 candles) and "duzentas velas" (200 candles) respectively. Confusingly enough some also do it with watts.]
Never heard this before, brazilian here btw.
All regular sockets in my city are 220V 60Hz. I think only places like hotels have different voltages.
Or people who have old houses, 2 pins sockets, and rip apart the ground pin from their 3 pins plugs.
Yep, my dad can't stand the ground pin in almost every plug. I had to convince him not to destroy them all.
Maybe he meant ASPD (Antisocial Personality Disorder)?