The little girls have a race track that is constructed by snapping sections of the track together, which allows flexibility of the track. 
The battery-operated, soft-sided cars that run on it are almost hyper/crazy when fresh batteries are put in them, but after some use, they slow down to a respectable pace. When they are about to run out of juice, however, they just won't GO. Taking them off the track will free up the friction from the wheels enough to let them spin, but as long as they are sitting on the track, they are pretty much worthless. This scenario describes ME at work when I reach that point where I can do NO MORE. I'm not talking "sleepy". Sleepy is bad enough, but usually a walk around the room, a guzzled water bottle or a few sticks of minty gum will take care of sleepy. I'm talking about HIT-THE-WALL tired. This happened last night, as it has a handful of times before. I'm typing away, very much interested in the subject at hand (which last night seemed to be predominantly Gallstones - we joked that the hospital must be running a special on lap-choleys) and then it hits me: The muscles and tendons in my forearms begin to get sludgy (like hardening cement-->concrete) and my brain refuses to get the signal from my ears to my fingers, as to what to type. When I get this overwhelming feeling, I typically finish whatever report I'm typing, and then get up to walk around, drink some water, pop some chewing gum (ha - sometimes literally). It usually helps for several minutes, but then, like the batteries in the little car, I just sit "on the track", worthless. Luckily, when someone picks me up and puts me in my van to drive home, my wheels spin just long enough to get me there, but sometimes it's scary. Sometimes it's surreal. When this feeling hits, there is nothing like being placed in the recharger that is my bed to get that necessary energy it takes to go again. (Unfortunately, I am still not feeling recharged at 10:30 a.m., and it is raining, which adds to the feeling of wanting to go back to sleep. Come ON, juice.) | 
They were amazingly good. Once when we stopped after four hours, they were soaked up the back from wet diapers, but never complained once. They actually complained less than WE did!!
When Brian asked Autumn if she wanted to go to the playground OR to visit Mommy at work, she replied, "I want to go to Back Yard (not sure why she calls the park this), and to see Mommy, and I want fries!"