oldfart
Older than dirt
Is this a common fantasy of men?
No. Most men (and women) I have met have a rather rich fantasy life, and given the opportunity would love to engage in what we used to call "good, clean fun". Now the code is "safe, sane, and consensual". The author of "50 Shades" calls it "kinky fuckery".
Not saying there aren't some seriously disturbed dudes out there. I'd stay away from anybody who used to pull wings off of flies when they were a child, but a guy who field-dresses his deer could date my sister.
IMHO there is a petty clear line between safe and crazy (although every year some dumb ignorant bastard will get killed or kill someone with "breath play"). There is a clearer line between erotic and sadistic. Bottom line: stick to people who are as interested in how you are enjoying yourself as they are in how they are enjoying themselves.