Your brainwaves slow down involuntarily, your head gets groggy, your vision is blurred, you can't hear a thing.

The seat you're sitting at feels so comfortable all of a sudden. The environment reminds you of your perfect sleeping environment: air-conditioned, comfortable and you're just downright exhausted. Just closing your eyes for a moment wouldn't hurt, it couldn't possibly be counted as disrespect to the speaker.

As time wears on, you try to fight against your defying eyelids, to prevent them from shutting you off from the lecture. You attempt to jolt your brain into functioning mode by engaging in a futile attempt to concentrate. You helplessly take in deep breathes with the naive belief that the extra oxygen provided to your brain will prevent you from committing a sin.

But everything is just too boring.