It's obvious gas prices have frustrated drivers.

"It's shocking," Carlos Garza of Dewitt said. "I drive around and I look at the prices and I'm shocked."

"I refuse to pay for gas," Nate Taylor of Lansing said.

Instead of digging deep into his wallet, Taylor got a bike.

"I don't make enough money in a week to pay for gas," he said.

But others are trying a different method to get around the high prices... the five finger discount.

"We've had a number of drive-offs from local gas stations," Sergeant Tim O'Neil of the Ingham County Sheriff's Office said.

O'Neil said more and more people are filling up, then driving off without paying.

"We've had a slightly higher increase in the Jolly and Okemos area," he said. "It's a high volume area right off the freeway."

Randy Markham, the owner of the Sunoco on Okemos road near Jolly, said he's had hundreds of dollars worth of drive-offs and it's forced him to make every pump pre-pay.

"Any gas station that allows that kind of purchase is susceptible," O'Neil said.

Markham's second station on Dunckel road has been hit too.

Pump one and two are still not prepay, but that will change soon. Markham said there have been $165 of drive offs from those pumps Thursday.

Thieves are also preying on farms and construction sites.

"We've had some large volume tanks broken into," O'Neil said.

Even your car's tank isn't safe. O'Neil recommends getting a lock for your gas cap.

"Make sure your vehicle is secure," he said. "Don't leave your gas cap ajar so people can't easily get into it."