Snape: "It appears that Gryffindor is winning the house cup..."

Dumbledore: "What of it?"

Snape: "It just seems odd to me that Mr. Potter keeps being awarded 50 points in the late hours of the night. He also spends a great deal of time in your office wouldn't you say?"

Dumbledore: "Special wizard training, he needs to master my wand."

Snape: "Do you mean his wand?"

Dumbledore: "Yeah sure whatever"