It's happened to all of us: You meet a girl. She smiles and flirtatiously looks you in the eye. She plays with her hair, touches your arm and drops every single one of the "I'm interested" signals (which you learned from the how-to-understand-women spam emails you've read).

Then, boom, out of nowhere, she mentions her boyfriend. Or, if you were so in the moment and didn't bother to check her hand, she drops a devastating bomb about a fiance or a husband.

So what's your next move? Do you pull back, or do you move forward and pay no heed to this massive red light? Obviously how drunk you are (and how irresistible she is) will come into play. But we want to survey general parameters. Read on for the pros and cons of each level of home-wrecking.
I'd hook up with a woman, even if she . . .
. . . is married -- life is too short not to explore all your options724 (30.0%)
. . . is engaged -- there is a reason for a period of engagement155 (6.4%)
. . . has a boyfriend -- it doesn't mean a thing if there isn't a ring556 (23.1%)
None of the above -- I won't plow another man's field977 (40.5%)


Married
Pro: Up to 65 percent of married women cheat, so it isn't like lightning comes down from the sky when you make yourself a party to adultery. However, since sexual frustration is one of the leading causes of female infidelity, you could be in for an explosively good time.

Con: You've involved yourself in the complicated, legally intertwined lives of two people who both have the potential to be unexpectedly crazy. This doubles the chance somebody is going to end up cooking your rabbit.

Engaged
Pro: If an engaged women is receptive to your advances, it's probably because she wants to get in one last fling before the death-do-us-part stuff. Or, she's having doubts and is looking for a reason to break off a marriage that shouldn't be. Either way, your penis is doing the woman, her fiance and society a favor.

Con: If you develop feelings for the woman, you might be tempted to break up her wedding, "The Graduate"–style. But that move never works in real life, and you definitely don't want to put yourself in a situation where you might become that most pathetic of guys.

In a Relationship
Pro: When a woman without a ring flirts and mentions she has boyfriend, she's just signaling you need to to try harder.

Con:
If things do work out, you're probably never going to be able to trust her.

Unattached
Pro: No extra drama. No feelings for someone who isn't available. No chance a jealous boyfriend/fiance/husband barges in and opens fire.

Con: You are now floating in a greatly reduced dating pool, consisting largely of the un-datable and the extremely picky. It's a wonder that single people ever get together at all.