Humour : the brand new section

Okie, here comes another addition to my repertoire of variety of posts. I call this one the Humour. In this section, I'll add those incidents(fictitious or non-fictitious) that'll tickle you funny bone. The content however may not be entirely original, still I'll try my best to give it my originality.
Here goes the first one.

A stranger was seated next to a little girl on the airplane when the
stranger turned to her and said, 'Let's talk. I've heard that flights
go quicker if you strike up a conversation with your fellow
passenger.'

The little girl, who had just opened her book, closed it slowly and
said to the stranger, 'What would you like to talk about?'

'Oh, I don't know,' said the stranger. 'How about nuclear power?' and he smiles.

'OK, ' she said. 'That could be an interesting topic. But let me ask
you a question first. A horse, a cow, and a deer all eat the same
stuff - grass - . Yet a deer excretes little pellets, while a cow
turns out a flat patty, and a horse produces clumps of dried grass.
Why do you suppose that is?'

The stranger, visibly surprised by the little girl's intelligence,
thinks about it and says, 'Hmmm, I have no idea.'

To which the little girl replies, 'Do you really feel qualified to
discuss nuclear power when you don't know shit?'

Dsez: Sometimes we miss trivial facts, even though we know it, we can't recollect it, or say, we don't try to recollect it.
Keep your fundamental knowledge right before you run towards bigger things!