The boy & I were getting out of the car today, and as I turned around to let him out of his seat and to tell him what he was responsible to carry into the house, I noticed he was putting the tag from his backpack in his mouth. I told him he wasn't to put it in his mouth, and then asked him why he had done it. The answer? "Well I thought you weren't looking at me Mummy."
This doesn't bode well for me during his teen years.