DP and I went to London last weekend (we're living overseas), got off a flight and onto a commuter train to visit my brother. It was full of exhausted, depressed-looking people. DP stood by the door, reading his book. I leaned my six-month pregnant self against one of the seats and read my book. I'm having a lovely pregnancy, am full of beans and having just been jammed on a budget flight for a couple of hours was happy to stand for 30 minutes.
I've always got a seat when I've wanted one - I have a special face I do that never fails. If I need one, I ask whoever is sitting in the priority seat, politely, if I can sit down as I'm a bit tired.
A lady, also seatless, got all worked up and eventually said in a very loud voice, is noone going to give up their seat for this pregnant lady?
The man in front of me got up, looking very red-faced and claimed he would be delighted to he just hadn't seen me.
Frankly I'd rather she'd asked if anyone had any leftover lunch.
I do appreciate her kind thought though.