Tänk på denna passage från kapitel 31, "Den förlorade profeten" av Phoenix-ordningen :
“More recently,” said Dumbledore, “I became concerned that Voldemort might realize that this connection between you exists. Sure enough, there came a time when you entered so far into his mind and thoughts that he sensed your presence. I am speaking, of course, of the night when you witnessed the attack on Mr. Weasley.”
“Yeah, Snape told me,” Harry muttered.
“Professor Snape, Harry,” Dumbledore corrected him quietly. “But did you not wonder why it was not I who explained this to you? Why I did not teach you Occlumency? Why I had not so much as looked at you for months?”
Harry looked up. He could see now that Dumbledore looked sad and tired.
“Yeah,” Harry mumbled. “Yeah, I wondered.”
“You see,” continued Dumbledore heavily, “I believed it could not be long before Voldemort attempted to force his way into your mind, to manipulate and misdirect your thoughts, and I was not eager to give him more incentives to do so. I was sure that if he realized that our relationship was — or had ever been — closer than that of headmaster and pupil, he would seize his chance to use you as a means to spy on me. I feared the uses to which he would put you, the possibility that he might try and possess you. Harry, I believe I was right to think that Voldemort would have made use of you in such a way. On those rare occasions when we had close contact, I thought I saw a shadow of him stir behind your eyes. … I was trying, in distancing myself from you, to protect you. An old man’s mistake …”
Dumbledore var avsiktligt cool mot Harry för hela boken, för han var orolig att om Voldemort lärde sig om sitt förhållande (vilket var mycket närmare än en typisk rektor och elev) skulle Dumbledore och Harry bli hotade. Om Dumbledore hade gått in i Harrys hörsel och spunnit lite garn om hur han hade tillåtit Harry att göra magi utanför skolan, hade det dock varit uppenbart för alla att deras förhållande var ovanligt.
Och det är om han inte hade blivit lurad - om han hade det faktum att han skadade sig för att skydda Harry skulle ha angett en jämn mer ovanlig relation! (Jag tror att de andra svaren redan har tagit upp Dumbledores logistikproblem.) Under förhandlingen slog Dumbledore med avsikt Harry under bussen för att han bedömde att Harrys potentiella straff skulle bli mindre skadlig än att avslöja deras förhållande till Voldemort.