A father...

..... is someone that holds your hand at the fair, makes sure you do what your mother says, holds back your hair when you are sick, brushes that hair when it is tangled, lets you eat ice cream for breakfast, he walks you down the aisle and tells you everythings gonna be ok.....

.... (and has had a word with the groom according to the Dad in the picture ;-P).

He'll stand by you ;-)