A woman is getting on a bus when, just in front of her, a man gets up from his seat. She thinks to herself, "Here's another man trying to keep up the customs of a patriarchal society by offering a 'poor, defenseless woman' his seat."
She pushes him back onto the seat. A few minutes later, the man tries to get up again. Again, she refuses to let him up.
Finally, the man says, "Look, you've got to let me get up. I'm two miles past my stop already."