One of the imponderables

Picture a moment of peaceful slumber. You're awakened by the sound of child getting out of bed and glance at the clock that reads 2:10 . You assume he's going to use the bathroom but instead he begins pushing at your door. Then stops. Then starts pushing again, finally coming in. He tells you that 6:10 is too late (the time that you told him the previous morning you'd be waking him to get him to school, a job Grandma usually has, and for which he gets up at 6:35 for her) to get up. You blearily say something like "Brendan it's the middle of the night, go back to sleep". You hear the sound of either a child peeing or water running and then going back to his room, yet you never heard said child enter the bathroom, but it's the middle of the night and you're barely awake so don't think anything of it beyond a glancing thought of "Is he peeing in the (carpeted) hallway?".

Morning beckons, you go in at 6:10 to wake said child. He's clad in his chosen night attire of underwear and socks. You rub his back, go to give him a playful tickle on the tush and feel his soaking wet underwear. And then notice the big wet spot on the bed, which is strangely on the side of the bed not far from the pillow. You say something inane like "Is your underwear wet?" and he replies "yes, and my socks too". You feel his socks that are indeed very wet. You get up and go back out into the hallway and notice one tiny damp spos, but no stain or smell coming from it. You ask said child if he peed in the bed or the hallway and the only answer you get is "yes".

Here come the imponderables, if he did all the peeing in the hallway, then how was there no stain and no smell? But if he peed in the bed, there would have been no sound of peeing/water running before he went back to the room. Or did he actually run water in the bathroom and then go back to his room and pee in the bed? But there was that small damp spot, unless he started in the hallway but held it in to finish on his bed. But then why would he pee in the hallway or bed? He hasn't had one accident in his bed since he's been in underwear, no since long before that, when he was still in pull-ups at night, so well over a year ago. He regularly gets up to pee during the night with no problem. He had time enough to wake me and tell me getting up at 6:10 was too late so enough time to make it to the toilet. And the biggest imponderable, once having peed, either in the hallway or on the bed, why the heck didn't he say something instead of going back to bed in wet undies and socks with the cold air conditioning blowing on him? He had no embarassment about being wet so that's wasn't it.

Oh and if anyone can explain to me how green perfectly unripe bananas instantly turn yellow and full of brown spots moments after entering my house, I'd love to know the answer to that one too.