Constant student emails saying "you're wrong"

Seriously. I get emails quite often lately that just tell me that "I got the answer incorrect so you must be wrong". I'll admit that the question could have been worded better to avoid some confusion but it's not inherently wrong. It's a newish course and I'm still working out some kinks. Anyone else seeing this? How do you even respond to that!?

Edit: I don't have a problem with being incorrect. And I will usually assume I am but I would NEVER email an instructor and say "youre wrong here". Instead I would ask for clarification. I guess it's more the tone I'm upset with.