I offer to the elderly, disabled, pregnant etc unless I'm heavily pregnant during which I'm pretty unstable, so others have to stand for me. Saying that, I rarely use public transport, so it doesnt come up much.

Poor Dh once offered a seat to a heavily pregnant woman. She kindly refused, saying if she sat down she wouldnt be able to get back up again. He felt so guilty, that people around him were judging him for not getting up for a pregnant woman. But it's not like he could push her into it

PZ - good come backs. Do you get that kind of age discrimination much? What a tool of a woman!