An angry cowboy walks into the bar and swears:
“Some things you just can’t explain… Double whiskey, please!”

He drinks it at once and swears again:
“Some things you just can’t explain…Another double!”.

The situation repeats itself several times. After a while a barman asks:
“Just what are those things that you can’t explain?”

“Well, this morning I got up early and wanted to have some milk. Went to the barn and started milking a cow. Milked a full bucket but suddenly the cow kicked it with the right leg and spilled it. I got angry, tied her right leg to the feeding rack. Milked the full bucket again, but she kicked it with her left leg. I tied her left leg to the other side of the rack. Milked another bucket, but she spilled it with her tail. I ran out of the rope, so I tied her tail to the crossbeam with my waist belt.
Finally, I get up and without a belt to keep them, my pants drop down. And at that very moment my wife walks into the barn…”

tekið af http://www.jengajam.com/r/unexplainable-things
“Keep smiling, it makes people wonder what you're up to.”