Because humor is funnier when you know it's true.
The twilight zone
One summer when in my 20’s, my friend and his girlfriend invited a bunch of us to their tiny beach bungalow. There were no sleeping accommodations for us, and so they asked that we bring our sleeping bags and use their yard to bed down.
On the first night, we returned late from a night of heavy drinking, grabbed our bags, and picked our spots for sleep. Between the raucous gang, the alcohol, and the hard sand and gravel surface, sleeping was fitful at best. But I managed to snooze a bit until the sun started coming up.
In my hazy, hung over state, I slowly awoke to hear a scratching sound in my left ear. Then I began to realize that the scratching was actually IN my ear. There was a living thing scratching on my ear drum! I immediately flashed back to an episode of The Twilight Zone in which a man managed to have an earwig (insect) enter his ear, which bore through his ear to his brain. Just as he was going insane, he was relieved to find that the earwig eventually came out of his ear, only to learn that in the process, it had laid eggs in his brain! Holy crap!
Suddenly I was awake with power of ten cups of coffee. I frantically and continually shook the left side of my head as when trying to eliminate water after swimming, but with no luck. This thing found a home, and wasn’t leaving. Every time it started scratching again, I totally panicked and was convinced that it was starting its journey to my brain. By now, everyone was awake and wondering why I was dancing around so energetically so early in the morning.