Sometimes while sitting in the train, it can be quite entertaining watching the strange behavior of your fellow passengers. Especially when it results in an unbroken cycle of this and that which refuses to stop despite the obvious reasons.
Take for instance the overweight guy with a grayish beard who was sitting across from me yesterday evening. He kept trying to read his large hardcover book and stay awake at the same time, but that was too much for him and his tired mind. The book balanced precariously on his protruding belly, teetering back and forth as the train negotiated the various curves and bumpiness of the terrain ahead.
He'd nod his head a couple times, lay his chin on his chest, start snoring and then let his heavy book drop like a rock to the floor. The resounding bang! would startle him back awake, and then realizing that he'd just been reading, he'd bend down and pick up the book. Then he'd have to thumb through the various pages to figure out where he had stopped reading, but I didn't get the impression that he returned to the same page each time.
The cycle repeated itself very predictably. His head would nod a couple times, snoring sounds would occur and then bang! Time to wake up and start reading again. Now where was I?
The bang! would not only startle him awake each time, but also the passengers nearby would jerk from the unexpected strike.
I'm not sure how many times this comical scene repeated itself, but that is not important. What is interesting is that this person was obviously tired and refused to accept that fact, although he kept on nodding off over and over.
Why keep on going and not accept that you are too tired to read? If it were me, I'd simply put the book away and have a good nap. No need risking a giant bang and startling me awake each time.