Logical?

My daughter was coming down the stairs, and discovered several pairs of size-3 underwear strewn over the steps.
She stopped halfway down and asked the kids, "What's all this underwear doing here?"
"D wanted to wear it on his head like a hat," K answered helpfully. (As if that explains it-but never mind.)
She said to D, "Pick up the underwear and give it to me so I can put it away." D picked up the pairs of underwear and flung them up in her general direction. She managed to catch a few pairs. "Please hand them to me," she asked D.
"Mommy can't bend down to pick them up because her tummy is so big because of the baby," I added.
D picked up the underwear and handed it to her, along with a kipah that also happened to be on the steps.
She gave the kipah back to D and said, "Here, put this away in the closet," at which point D took the kipah and flung it down the steps in the general direction of the closet.
"Please pick it up and put it in the closet," She said, wearily.
"Bubbie can do it," D said. "She doesn't have a big tummy!"

More is Less

Mommy had cut up some cucmbers from the garden and put them on a plate. K took a whole fistful of cucmber slices and put them on his plate, leaving only 2 or 3 slices for everyone else. Mommy pointed out that he had taken almost all of the cucumbers, and asked him, "Do you think that will be enough for me, Daddy, D, and Bubbie?"
K looked at the serving plate and at his own plate. He then took all the cucumbers from his plate and put them back on the serving plate, and then proceeded to take some for himself, one at a time--until he had just as many cucmbers on his plate as the first time. Apparently, if you take them one at a time, or more slowly, you end up with less!