People call me “sir” all the time even though I am clearly female. Apparently, even in this day and age, short hair still = male. Annoying and ignorant, but it’s always been an accident, as far as I can tell, and many people will correct themselves as soon as they realize their mistake. But doing it on purpose? F that noise. Homophobic, maybe transphobic, and terrible customer service. That flight attendant should be fired.