ABC News' John Muller reports:

A video that shows three teens pretending to fall in a supermarket, spilling the gallons of milk they are carrying, has become a hit on the Internet.

Dubbed "gallon smashing," the prank has done well online but might have legal implications.

In the original video, the three Vienna, Va., teens - Zayd, Faysal and Omar Khatib - film themselves carrying milk containers in supermarkets. They pretend to trip and fall, sending the gallons of milk crashing to the floor, with dramatic results. Supermarket workers and shoppers who don't know it's part of a prank rush to help the seemingly injured boys as they flail about in the spilled milk.

The teens - two brothers and their cousin - consider themselves actors and have their own YouTube channel, theCHAIZYchannel, where they say, "We've always been pranksters. But on December 10th 2011 we decided to start getting our pranks on camera."

Their other prank videos include one showing their lying down in odd poses on a moving elevator, while another shows their pretending to splash unsuspecting people with an empty bucket.

The trio told the cable show "Right This Minute" that the "gallon smashing" video was an innocent prank and no one got hurt.

But they seem to realize that gallon-smashing takes things to a whole new level.

"I don't think we can top this. We probably won't do anything this bad again, probably calm it down a little," one of the boys told "Right This Minute."

One "gallon smashing" video earned more than 3 million views on YouTube in less than a week.

Some people find it hilarious but Dana Cole, an attorney and legal analyst for ABC News, says it potentially runs afoul of the law.

"Looking at the video, it does seem a bit malicious, not so funny particularly because someone has to clean it up," Cole said. "Based upon that, it can easily be viewed as a crime."

The original posters' video has been pulled from YouTube, but others have uploaded it.

An alleged copycat gallon-smashing incident in Utah this week led to disorderly conduct charges for 10 juveniles.