I’m rude to debt collectors who call me trying to collect debts from people who happen to once have had the same phone number as I once did. Like, I’m not who you’re trying to collect from, fuck off.
I’m also rude to generally any scam caller, they’re some of the few people I take great pleasure in telling off because I can get away with it. They’re scammy assholes, what’re they gonna do? Cry to the authorities? Knowing that they’re pieces of shit who scam people out of money? Good fucking luck.
Anyone pushing their religion to others.
I’ve had parents come to me and demand that their child would be excluded from classes involving sex education or something else they think is “wrong”. Simple but strict “no” usually infuriates them.
I will teach every student according to the national curriculum and the matter will not be discussed further. Then the parents threaten to take this to the principal and see me reprimanded. Good luck with that, our principal is much stricter than me about going by the book.