Santa wanted to be an accountant, so he went for an aptitude test:

Tester : If I give you two Rabbits, and two rabbits, and another two rabbits, how many rabbits have you got?
Santa : SEVEN!
Tester : No, listen carefully again. If I give you two Rabbits, and two rabbits, and another two rabbits, how many rabbits have you got?
Santa : 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?
Santa : SIX.
Tester : Good! Now, if I give you two Rabbits, and two rabbits, and another two rabbits, how many rabbits have you got?
Santa : SEVEN!
Tester : How on Earth do you work out that three lots of two rabbits is seven?
Santa: I have one rabbit at home allready