a horse has 5 legs...

My uncle once said, "Boy, do you see that horse?"

Yessir.

"How many legs does that horse have?"

Four.

"Now what if I say that a horse's tail is a leg, too?"

Uh...

"If I call a horse's tail a leg, how many legs does that horse have?"

Five?

"Boy, will you never learn? It doesn't matter what you call something. That horse still has four legs."

Sometimes when confronted with a difficult challenge we reply, That's not true! We say, That's not a (vanity page)/(rant)/(personal attack)/(tail); that's a (noteworthy article)/(discussion)/(polite comment)/(leg). But this changes nothing.

It's never enough to reply to a comment by saying You're wrong! That's not true! If it really is a leg, then show us how.

Proof that a horse has, in fact, an infinite number of legs

1. A horse has four legs
2. It has forelegs at the front
3. It has two legs at the rear
4. Four plus two is six, it has six legs
5. Six is an odd number of legs for a horse
6. Four is an even number
7. The only number which is both even and odd is infinity
8. Therefore: a horse has an infinite number of legs

This is just as false as calling the tail a leg...

Very well, you say it does not have five legs: I say it has nine!

1. No horse has five legs.
2. Any horse has four legs more than no horse does.
3. Therefore, a horse has nine legs.

The longer you count, the more legs a horse has

1. A horse has four legs
2. It has two forelegs at the front and two hind legs in the back. This makes it 8.
3. It has two legs on the left side and two legs on the right side. This totals 12.
4. It also has four perfectly visible legs from the below. Now we have 16 of them.
5. And we even didn't start counting legs on each corner!

When arguing, make sure you add really new legs to your stand.