Maybe it's just my female socialisation talking, but I'd help anyone with crutches without even noting their sex as an important characteristic if this was a public place. It would literally only take a few seconds and would be very helpful, without you losing anything. The world would be a much better place if we were all nicer to each other. Obviously, you have to take the necessary precautions to be safe around men. Notice any red flags, never follow them anywhere private, don't climb into any cars and if you're uncomfortable, don't be afraid to leave out of rudeness. The usual. As women we have to be very wary of possible male violence at all times. And obviously, no one is owed anyone's help. If you see someone bleeding to death outside of a hospital, you're not legally liable to help them. But not every day to day interaction has to be a political statement.