ELECTRICAL APPLIANCE
Little Johnny is at school, and at the end of the day the teacher asked the students to bring one electrical appliance, for "Show & Tell" the next day. So the next day every kid has something.
The teacher asks Wendy: "What did you bring?"
Wendy: "I brought a Walkman."
Teacher: "And what is it for?"
Wendy: "You can listen to music with it!"
Teacher: "That is nice Wendy, and what did you bring Kenny?"
Kenny: "I brought a electrical can opener, it opens cans, miss!"
Teacher: "Well done, Kenny, but I see that Johnny didn't bring anything!"
Johnny: "Yes, I did. It's in the hall."
The whole class looks out into the hall.
Teacher: "WHAT IS THAT, JOHNNY?"
Johnny: "It is a heart/lung device, they use it in hospitals to keep your heart going!"
Teacher: "How did you get it here? What did your parents say about it?"
Johnny: "Well, my mom doesn't know I brought it here, but my father said: AAAAAAAHHHHHHHHHHHHHH!!!"