Perfect Pitch?

At the last lesson, my son's teacher, Mr. K and my son worked on A minor 4 octave scale. He's been working on it for awhile. However, at shifts his intonation has been unstable. Then Mr. K asked him "Do you have a perfect pitch?" My son replied "I don't know." Mr. K asked again, "Can you name a note when someone plays it?" My son said "Yeah, I think I can." I wasn't sure if he was really able to do that. Anyway, Mr. K said "If you can, why do you let it get away with out-of-tune notes when you play scales?" My son didn't say anything about that:) While they were working on the scale, I was battling with my camcorder. It is not working. I tried to pop the tape in and out. Every time I did so, it made a sound "Pe, po, pa, pe." Mr. K asked my son, "What were those notes?" My son was like "That sound from the camera? They are e#, b flat, c# and e#?" Then Mr. K exclaimed. "See, you do have a perfect pitch! Use it!!! Don't be lazy. Use it when you play! By the way, your mom has a perfect pitch, too." I was confused. "Me?" He explained to me, "Yes, see, every time your son plays out of tune, you make that face. That is because you have a perfect pitch." I said to him, "Oh, so that's what it was. I just get really uncomfortable feeling every time I hear a note out-of-tune. So, I just don't know the names of the notes." Mr. K said "That's correct." Now, it is true my son's been neglecting to fix those out of tune notes. It was an eye opener for him. Now, he needs to open his ears and listen to the notes he plays and correct one note at a time. Mr. K suggested to work on just two notes at a time to fix it. For example, if he has a hard time shifting from one note to the other, he needs to work on those two notes only until he gets it. Then put them in to the rest of the phrase. If he messes it up, he needs to repeat the process again. In matter of five minutes, he was able to fix one area he had been struggling with. By next lesson, he should be able to play A minor scale in tune, I hope:)