So, because a guy tried to shake your left hand you had sex with him? That’s an odd custom.
Dear God. I bypass all this bullshit and offer my to men I meet. It’s a handshake, not anal.
Your WHAT? My stars and garters, is it something depraved?
Dammit. I’ve got to quit posting when I’m in a hurry. I’ll leave what I offer to anyone as an exercise for the discerning reader.
No he offered his left hand, a inbreed !
In a similar thread about men being offended (or not) by a woman holding open a door:
http://boards.straightdope.com/sdmb/showthread.php?t=797178
I mentioned that I was a product of the '70s (“women’s lib”) and will try to be gender neutral in all of my dealings with people. Until reading this thread, I never even knew that there was a possible hand-shaking issue. (I’m a 57 year old guy btw).
Nonetheless, in any introduction to a woman in a professional setting I offer a handshake to women and they don’t seem surprised or taken aback (in fact they have never waited, they’ve produced their hand like anyone else).
In a social setting, if it’s a first time or someone I’m not close to, I’ll shake hands and, again, there’s no weird reaction or hesitation etc.
If she’s a friend then two kisses if I’m in Quebec or a hug in the rest of Canada.
I can’t imagine why on earth it would offend me. I really like it. Especially a firm, sincere handshake. Makes me feel more like this is a person, accepting me as a person. You know, more straightforward.
A Swedish green wing politician got kicked out of his party when he refused to shake a female reporters hand. His name was Yasri Khan and the green party here will never fully recover I think. To me it would seem very strange not to shake someones hand the first time i met them. You can tell a lot by a handshake.
I prefer to use the old fashioned protocol - a woman offers her had first if she desires to shake hands. I dislike being touched because frequently I have pain issues [arthritis] that I didn’t have when younger … so it all depends if I am having a good or bad body day, and if I am in a wheelchair or on crutches.
Once upon meeting a cow-orker’s wife I held out my hand, but she pulled back, aghast.
I had not realized that she being a Muslim, I was unclean. Or she was unclean. Or we were both unclean and risking a lifetime curse (possibly extending to untold future generations).
It’s just not safe to allow me out in public. 
If you extend your hand fora shake, please do not offer me the limp half finger shake so many men seem to do when shaking hands with a woman. I would rather you keep that to yourself. Otherwise hand shake is fine.
I’m fine with handshakes, held doors and offered seats, as long as nobody tries to make me sit when I don’t want to. That really annoys me!
I have unusually large hands for a woman and they are very strong thanks to work and guitar. They are, however, often injured. I try not to grasp to hard. I seem to surprise a lot of guys!
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