The troublesome part of that is that I don't remember when I first saw it. I can remeber all of my birthdays, even my first one, I can remember every kid in every class I ever had, I remember which kids I taught to blow into the cartridge, and remeber others doing it and wondering if every NES console had the same issue. Hell, I even remeber the first time I put a game into the NES and the power light blinked so I just played a different game (I wanted to play Rygar which I had borrowed from a friend, when it didn't work, I suspected it was because that kid didn't use the black dust sleeve/cover that came with the game, so just played some Metal Gear). I remember everytime I ever blew into the game, I would swallow all of the saliva in my mouth first so thay I wouldn't get the connectors wet when I blew. I can remember all of that, but have no memory of being taught to blow into a cartridge.