Martha, a radical feminist, got into the bus and seeing 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," and pushes him back on the seat.
A few minutes later, the man tries to get up again. She is insulted again and refuses to let him up.
Finally, the man retorts, "Look lady, you've got to let me get up. I'm two miles past my stop already."