A baby polar bear goes to his mum and says
'Mum, am I a real polar bear?'
She says 'of course you are! Now I'm busy hunting, so go and talk to your dad'
So he goes to his dad and says
'Dad, am I a real polar bear?'
He says 'of course you are! Now I'm busy hunting, so go and talk to your grandad'
So he goes to his grandad and says
'Grandad, am I a real polar bear?'
He says 'of course you are! Now I'm busy hunting, so go and talk to your gran'
So he goes to his gran and says
'Gran am I a real polar bear?'
She says 'of course you are! What a silly little chap you are.'
He says 'are you sure?' '100% polar bear?'
She has more time than the remainder of the family (and of course being granny she takes time with junior) and she replies 'Look, your mum and dad are both polar bears, your grandad and I are both polar bears so of course your a real polar bear, a 100% polar bear. Why do you ask such a funny question?'
'Cos I'm ----ing freezing!'