Private investigator who catches cheating husbands and wives reveals sneaky sign everyone misses

A private investigator who catches those who cheat on their partners has revealed the sneaky sign someone is deceiving their other half that everyone seems to miss.

While cheating is an unforgivable act in many people's eyes, some argue there is a reason why someone decides to cheat in the first place.

Dating experts have offered their opinion on this, including one offering six reasons that she believes explain why women may choose to cheat on their partners, while another revealed the common 'justifications' cheating partners gave as a reason.

Whatever the reason they stray, Cassie Crofts - who works as a private investigator - helps uncover cheaters.

Crofts runs Venus Investigations, who work with clients that are concerned their partner may be cheating and conduct dating background checks.

And in a video uploaded to TikTok recently, the private investigator stated there is one tell-tale sign that everyone misses suggesting your partner is being unfaithful.

"I'm a private investigator and this is the number one cheating sign that everybody misses," Crofts began.

"We're basically a cashless society these days so if your partner has always been about tap-and-go, using a credit card for reward points and suddenly starts doing ATM withdrawals - that's a bread crumb worth following.

"Cash doesn't leave a trail. If they go to a restaurant and spend $200, you can be pretty sure they weren't dining solo.

"But $200 cash withdrawal? You've got no idea what happened."

Viewers have flocked to the comments section of the video, with one person penning: "Lol I do cash, I hate the card surcharges, I'm cheap, not cheating! (and obviously partner knows and approves)."

While a second added: "Yep this is soooooo true!"

Ray Ranno, a fellow private investigator, revealed recently how he often employs the use of one particular gadget to uncover an affair.

'How experienced is he in this field?' you ask. Well, spying on unfaithful spouses makes up 'about 40 percent' of his work.

To preserve his cover, Ranno uses a special camera disguised as a coffee cup while he trails suspected cheaters around places such as a supermarket, gas station or even a car wash.

But many people have questioned how on Earth the private investigator manages to stay uncovered during this whole process.

He explained: "If I go into a coffee place, or a supermarket wherever I need to be, I just take the lid off turn it on put the cap on and it looks like I'm walking around with a coffee.

"In the meantime, I'm videotaping everything."