I teach secondary English. Last week as a starter I gave all my classes (Yr 7s, 8s and 9s) some riddles to solve and this was one of them:
A man and his son are in a car accident and are rushed to hospital. When they arrive the doctor looks at the boy and exclaims 'I can't operate on him, he's my son!' How can this be?
Some kids guessed that the boy had 2 dads in a gay relationship, which could technically be correct of course. But it only occurred to 3 kids out of nearly 100 that the doctor could be a woman. Not one of the Year 7s thought of it.
In this day and age? I couldn't believe it!
They got a nice little lecture on feminism as a bonus that lesson 