A woman walks into a fish shop. She is pretending that she is mute and says, "MM MM MM NN MNN."

The clerk says, "What?"

The woman again mumbles, "MM MM MM NN MNN."

The clerk replies, "I dont understand you, i'll have to get my manager."

The girl goes and gets her manager. The manager comes out and asks, "May i help you?"

The woman lifts up her shirt and the manager says, "HOLY MACKEREL."

The woman replies, "Yes, I would like two pounds please."