One day in class the teacher asks little Johnny a simple math question...
"Johnny, if I gave you 2 rabbits, then I gave you 2 more rabbits and then 2 more rabbits, how many rabbits would you have?"
"7"
"No Johnny, listen again, I give you 2 rabbits, then another 2 and another 2 so how many rabbits do you have?"
"7"
"Ok, Johnny, try this, I give you 2 apples, then 2 more apples then 2 more apples, how many apples do you have?"
"6 miss"
So, I give you 2 rabbits, then 2 more rabbits then 2 more rabbits how many do you have?"
"7 miss"
"Oh good Lord, 2 rabbits and 2 rabbits and 2 more rabbits Johnny!! How can that be 7? 2 and 2 and 2 is 6!!!!"
"Yeah I know miss but I already got one at home ain't I!