If you leave your wallet, phone or sunglasses unattended for an hour on the beach, you would expect them to be stolen. That one's partly on you for being an idiot. However, if the item happens to be a canopy so large that the thieves require your help taking it down in order to steal it from you, that's on them.
The "them" in this case are two women on New Smyrna Beach in Florida, who decided to help themselves to another family's stuff while they were a block away at their rental house, putting the kids down for a nap. When the dad returned to the beach, he happened upon "them" having some difficulty trying to disassemble his canopy. Not surprisingly, things got awkward when the guy politely asked if they needed a hand stealing his belongings.
"You need some help?"
"Do you know how to do it?".
"Yeah," he says. "This is our stuff."
At that point, the ladies have a two options; one is simply apologizing and walking away. The other involves them claiming the stuff is theirs, getting in the guy's face, assaulting him for filming them, and then becoming stars of a viral video called Busted! Two Women Caught Stealing a Canopy on the Beach, Then Attack! with over 1.5 million views in two days.