OH gawd I hate this. Two particular times stick in my mind:
(1) In a bar catching up with an old friend I hadn't seen for ages (female) - group of 3 men approached us wanting to join us (my friend is particularly stunning, me not so! They wanted to ask her if she was a model, a polite no, oh you should be, no, what do you work as?, journalist, my mate works at a model agency he could get you on their books, no I'm happy with my job thanks, after 15 minutes of this 'banter' and monosyllabic answers from my friend, I finally got the guts up to say Look we just want to chat could you leave us alone please? We get a barrage of abuse (me loads about how they weren't talking to me, I'm too ugly to be a model, friend is a stuck up bitch she couldn't really be a model etc) Anyway unpleasant enough and then Monday morning I get into the lift at work and it's one of the blokes harassing us - he works at my company! Could barely look at me but once I caught his eye and so I said hello oh you work here too, well isn't that nice, do you want to repeat any of your comments you made to me Thurs night in the lift in front of your work colleagues? Got a shifty no before he hopped out the lift.
(2) Had to jump out of a cab (moving in v slow traffic, no Indiana Jones-style roll necessary) because the cab driver just did not want to take no for an answer to a 'date' and after many polite responses I realised I couldn't keep it up for a further 20 minutes (rest of journey) and I suddenly felt v scared that he would lock car doors and i was vulnerable so took my shoes off, left the fare on the back seat and did a runner. Reported him to his cab office, but even then I am so conditioned to feel 'bad' I felt guilty that he might lose his job because of it - but to him what was 'banter' or persistence had actually become threatening to me.
But yes, generally and annoyingly (re needing to point to another male 'owner' of you) the quickest way to get these type of men to back off is to refer to a husband or boyfriend, but I always feel like I've taken the easy option out esp when I lie when I've been single. Why is No thanks regarded as an invitation to further pestering?
Have plenty of male friends who would not do this and would regard it as harassment.