A son and dad was going for a camp. In afternoon, they started making their own camp in a field. After that, they fell asleep at their tent.

When evening came, the dad woke up his son.

Dad : Hey, son. What do you see above?
Son : Huh? All i can see is million of stars, dad..
Dad : Then what do you assume?
Son : Well, if there are millions of stars, and if even a few of those have planets, it’s quite likely there are some planets like Earth out there. And if there are a few planets like Earth out there, there might also be life.
Dad : *slaps son* you idiot, it means that somebody stole our tent!!!