Another blonde. Joke

A brunette, a redhead, and a blonde were robbing a supermarket when a police officer walked in the store. The three women decide to hide in three potato sacks. The cop kicks the first bag, and the brunette says, "meow ", the cop says, "oh, its only a cat "He kicks the second bag, and the redhead says, "woof, woof ". The cop says, "its only a dog ". He kicks the third bag, and the blonde says, "potato "