Three Dogs...and a Collie

The Taco Bell Chihuahua, a Doberman and a Bull dog are in a doggie bar having a drink when a very nice looking female Collie comes up to them and says, "Whoever can say 'liver' and 'cheese' in a sentence can be my topdog." So the Doberman says, "I love liver and cheese." The Collie says, "Sorry, that's not good enough." The Bull dog says, "I'll have some liver and cheese, please." She says, "Sorry, that's not creative enough." Finally the Chihuahua says, "Liver alone......cheese mine."