A Taco Bell customer in Sandy received a seven-year prison sentence for slashing the throat of a stranger who objected to her invective-laced rant about the restaurant’s service – all of which transpired as her two young children and boyfriend waited in their car, authorities said.Caley Mason, 22, of Maryland pleaded guilty in Clackamas County last month to second-degree assault in the brutal knife attack that left Jason Luczkow, 48, with an 8-inch gash from ear to Adam’s apple.The beef began after Luczkow, a Sandy resident, said he asked her to stop berating the Taco Bell employees."She was sentenced to 7 years.