Why aren't people putting more trust in Britney Spears?? The singer just got out of rehab following her DUI arrest and already caused controversy while out to dinner at the Blue Dog Tavern in Sherman Oaks on Wednesday, where eyewitnesses alleged to TMZ that she was yelling, barking, and even walking around holding a knife. The whole thing is said to have unnerved other diners, but Brit Brit's team vehemently hit back at the allegations, telling the outlet it was being "completely blown out of proportion.