"Are they twins?"
Many people asked me if they were identical. I would say "No, they are a boy and a girl".
Once this was the following conversation with a random 22ish year old and her entire family.
"I can see that, but are they identical?"
I felt a little obliged to explain that " No, identical twins would always be the same gender, they would be identical." She looked at me like I was talking gibberish. So I explained the 2 eggs - 2 sperm thing. That they are as
Here is the good part, "No, I am in medical school and that is not the way it works. My professor just told me that identical twins can be of different genders!" Like she was showing off her smarts in front of her whole family.
So, as I griped the handles of my 3 month old very similar looking infants I ask her what medical school she was going to. After she told me I told her professor was a moron and that if I ever see that a degree from that place I will run for my fucking life.