(LATimes) - Medical experts warn parents to watch for danger signs of young people getting drunk on the over-the-counter cleansers, which have a high percentage of ethyl alcohol. Six teenagers have shown up in two San Fernando Valley emergency rooms in the last few months with alcohol poisoning after drinking hand sanitizer, worrying public health officials who say the cases could signal a dangerous trend. Some of the teenagers used salt to separate the alcohol from the sanitizer, making a potent drink that is similar to a shot of hard liquor.