The tower was having some difficulty working a student pilot in the pattern and it finally came down to this;

Tower: 95 Delta, do you read the tower?
95D: 675, sir
Tower: 95 Delta, Say Again
95D: I think it is 675.
Tower:: 95 Delta, What do you mean by 675?
95D: I mean I think I read "Elevation 675 feet" on the tower as I taxied by for takeoff, but I am too far away to read it now.
Tower: 95 Delta, you are cleared to land. Please give the tower a call ON THE TELEPHONE after you have tied down.