For many years, saturday night live ran a series of skits about a character named “pat.” the premise of each skit was that no one could tell if pat was male or female, and ingenious plots to determine his or her gender all failed. the humor in these skits is based on the fact that:

The humor in these skits is based on the fact that gender identity is so important to our social selves that we can barely interact with anyone without first determining that person’s gender. 
Given that people didn't know whether Pat was female or male, they could laugh at all the things he or she didn't because it confused them as to what his or her gender really was. This is because the first thing we notice about people is whether they are male or female, and we are confused if it is someone 'in-between.'

Not true it depends on the person