A Question for Un-mums

So as most of us in North America know, yesterday was Mother's Day and I have a question for all the 'non-mothers' :

Have you ever been somewhere like in a restaurant and a staff member passes you a flower for Mother's Day? Do you take it, or decline it? That happened to me once, and I tried to be nice and save that flower for a real mother, by saying 'I'm not a mother' but was then chastised by several people at the table who told me I should have just taken it. I thought I was being nice to the 'real moms'.

So on Mother's Day, if you don't have any children, and people want to give you things for being a mom, or wish you a "Happy Mother's Day", do you say nothing and take the gift or the well wishes or try to correct them? Does it bother you? And what about 'step mothers' or 'other mothers'? Are they honoured? What do you do for them? Feel free to tell me what you think, I'm very curious you know.