From my local paper:

Brian Mitchell of Mitchell’s Sheet Metal estimated that about 300 gallons of gasoline had been stolen from his company’s trucks in the last few weeks, so he decided to do something about it.

On Monday, Mitchell set up an alert system in his parking lot and waited, gun by his side, in case something happened.

It didn’t take long. At 12:43 a.m. Tuesday, Mitchell surprised James Alan Waterman, 25, of Knox, and Tasha M. Vigneault, 19, of Freedom as they allegedly attempted to siphon gas from one of his trucks. They were held at gunpoint until sheriff’s deputies arrived to take the pair to jail.