The Top 8 Great Unsolvable Mysteries
of Human Behaviour

8 Why do we close the bathroom door when no one is home?
We could be alone in a cabin in the middle of the woods with all the entrances and windows locked and barred, but if we're gonna pull down our pants and take a seat in the bathroom, we gotta have that door closed!

7 You know those polls on TV where people have to phone in to record
their votes? How come the results often include a "don't know" category? Do people go to the effort of dialling up, paying a dollar or whatever the phone charge is, for the privilege of recording the fact that they haven't a clue?

6 Why does it feel nicer to have someone else scratch your back?
It's so much more delicious than doing it yourself—even though you're the one who knows exactly where it itches. It's better to do it with a stick or backscratcher too, than with your own hand. But the ultimate pleasure comes from others' fingers. Why is that?

5 Why do you see solitary shoes on roadsides?
It's never a pair of shoes, only singles. Are there people walking around who wear out a shoe and—right then and there—throw it away and continue on with only one foot clad?

4 Why do people leave a single square of toilet paper on the roll?  
What am I supposed to do with that? It must be the same kind of thinking that makes them leave just a little bit of coffee in the pot—enough to show they didn't finish it, but not enough for the next poor slob to actually get a cup from.

3 When we ask someone the time, why do we point to our wrists?
Is it because we want to remind the other person where he keeps his watch? Or are we pointing out that our wrists are bare to prove we're not the kind of people who go around asking others for the time just because we're too lazy to look at our own watches?

2 Why do peeing males always aim at the cigarette butt or dead bug
floating in the bowl? Oh, c'mon, don't tell me I'm the only one who does this! We fellahs seem to have a built-in aiming reflex. At a driving range, as soon as the guy in the cart makes an appearance to pick up the golf balls, just watch everyone start launching shots at him. No wonder some manufacturers have started painting a fly on the back wall of their urinals: men automatically try to hit it, thus reducing the incidence of misdirected...well, you get the idea. What's with us and aiming at things, huh?

And the Number One great unsolvable mystery of human behavior:

How come 99 percent of people are unable to lick their elbows?
And why, when they read this, will 75 percent of people immediately try to do it?