There are TONS of videos in youtube of street vendors and cashiers in general doing gross math errors here in Brazil
Like some dude who was selling bags of tangerines, 3 reals each. This place was like bumfuck nowhere, the worst place in one of the worst states
I hate these douchebags because they make fun of some shit that they shouldnāt
So, he asked the old man if he would make 3 bags for 10 reals. HE said no. 3 bucks each. He tried explaining the math the old man got pissed off said āLook, people buy the bag, 5 tangerines in each itās enoughā they want another, 3 reals more. Got it?" The man gives him a 10 reals bill and says can I get 3 bags with that? The man looks at the bill, greatest denomination in his coin and 2 real dirty bills tin can he uses to keep the money. HE thinks for around 30 seconds or so, but heās happy cause he sold 3 bags to a new customer. The man gives him 4 reals back.
Douche laughs his ass off and gives the man the change