Accountants and Pigs

So one day Johnny decides he wants to be an
accountant and goes in for an interview.

Tester: If I give you two Pigs, and two
pigs, and another two pigs, how
many pigs have you got?
Johnny: SEVEN!

Tester: No, listen carefully again. If I give
you two Pigs, and two pigs, and
another two pigs, how many pigs
have you got?
Johnny: SEVEN!

Tester: Let’s try this another way. If I give
you two bottles of beer, and two bottles of
beer, and another two bottles of beer, how
many bottles of beer have you got?
Johnny: SIX.

Tester : Good! Now, if I give you two Pigs,
and two pigs, and another two pigs,
how many pigs have you got?
Johnny: SEVEN!

Tester: How on Earth do you work out that
three lots of two pigs is seven?
Johnny: I’ve already got one Pig
at home now!