By Laura Snyder

The long days, the late nights, the water cooler banter and intimate business trips. Is it any wonder that when a guy strays, it's more likely to happen with a co-worker? According to one poll, 62 percent of men who admitted to an affair said it happened with someone from work.

If you want to make sure your man is doing his job - and not the cutie in the cubicle across the hall - here's where to start.

Cheat-Proof Point #1: Know his business.

Ask about his job - and stay up to speed on specifics. The more in tune you are with who the major office players are and what the latest gossip is, the less likely he'll need to confide in a knowing co-worker. As a bonus, you'll also be more likely to suspect when a late-night or long business trip is legit or a liaison.

Cheat-Proof Point #2: Be a presence.

Join him at the corporate parties, after-work happy hours and the company softball game. Any potential rivals will find it harder to undermine your relationship once they've socialized with you and see you taking part in your guy's life so seriously.

Cheat-Proof Point #3: Keep a little less mystery.

According to a Glamour magazine poll, 12 percent of guys tempted to cheat ultimately kept it in their pants because he was sure you'd find out. Stay in the loop when it comes to his life. No need to get controlling about it, but have a general idea of his whereabouts and who he spends his time with.

Cheat-Proof Point #4: Keep ties during trips.

Men are more likely to stray when they're outside their usual surroundings, have access to an anonymous partner and know it's less likely that you'll ever find out about it. This makes business trips an ideal time for a tryst. Keep him focused on you by regularly touching base (not every hour, now - once a day is fine) while he's away as a reminder of his responsibility and commitment.