The former convenience store clerk who urinated into a Mountain Dew bottle that was later gulped by an unsuspecting customer was sentenced to six months in jail this morning. Anthony Mesa, who has already served half his sentence since he pleaded no contest to tampering with a consumer product, also will remain on a form of house arrest for two years after he is released. Circuit Judge James R. Clayton withheld adjudication for the 22-year-old, which means he will not be considered a convicted felon if he abides by his sentence. Mesa was working at a Pix store on Howland Boulevard in Deltona in August when he and a co-worker decided to play practical jokes. They put eggs in beer cartons, and Mesa thought it would be funny to urinate into a drink, according to arrest reports. He faced up to 30 years in prison for the prank.