Police are calling him a quick change scam artist. They say he's hit all over town and appears to prey on young, inexperienced-looking cashiers.

In surveillance video from Menchies, a yogurt place near Fayette Mall, the suspect looks like any other customer. Police say it's when he gets to the register there's a problem.

"He'll buy something small and then start confusing the cashier--saying, 'No, no, I gave you a twenty or I gave you a fifty' and start quick changing them," explained Detective Carol Simms of the Lexington Police Department.

In this case, Det Simms says the suspect only purchased a few dollars worth of the frozen sweet treat, but ended up walking out with with a lot of "cold" hard cash.

"By the time it's over with, maybe 2-3 minutes later--this person may have walked out with $100 in their pocket that they weren't supposed to have."

Simms says this man has hit at least ten times that have been reported and may have hit more.

Those hit so far include the following:

3/9/12- Parkette Drive-In, 1230 E. New Circle Rd
3/14/12- Liquor Barn, 3040 Richmond Rd.
3/25/12- Liquor Barn Express, 1601 N. Broadway
4/10/12-Liquor Barn Express, 866 E. High St.
5/6/12- Movie Tavern, 133 N. Locust Hill
5/7/12- Chipotle, 345 S. Limestone
5/10/12- Bed Bath and Beyond, 2321 Sir Barton Way
5/10/12- Barnes and Noble, 1932 Pavilion Way
5/23/12- Movie Tavern, 133 N. Locust Hill
5/28/12- Menchies, 3801 Mall Rd.

Occasionally, police say he's been seen leaving stores driving an older, silver Ford Taurus. As teens start their first summer jobs, she's got some new advice.

"If a teen, anyone behind the register gets confused, yell for your manager--stay and go from there."

Lexington Police say when they catch this man, he'll be charged with multiple counts of theft.