Paddy wanted to be an accountant, so he went for an aptitude test.

Tester: If I give you two rabbits, two rabbits, and another two rabbits, how many rabbits have you got?

Paddy : Seven!

Tester : No, listen carefully again. If I give you two rabbits, two rabbits, and another two rabbits, how many rabbits have you got?

Paddy : Seven!

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

Paddy : Six.

Tester : Good! Now, if I give you two rabbits, two rabbits, and another two rabbits, how many rabbits have you got?

Paddy : Seven!

Tester : How on earth do you work out that three lots of two rabbits is seven?

Paddy : I've already got one rabbit at home!