Fuck you. You are what you generally look like. If you look more like a man, people will call you that until they figure out if you are a woman. Or we can call you Pat. Either way. Fuck off and die in a fire.
This pronoun shit is getting out of hand. As asked before, what happens if "they" are both being addressed in the 3rd person plural? What if they are one of the morecrazyunique people and each have a specific 3rd person plural pronoun they want used (zie and xe). You quickly get into a situation where you'll be insulting someone no matter what you do. It's like they haven't really thought this one through, eh? God I'm glad I've already finished my University degrees so I missed out on this BS!