i-learned-it-from-the-pizzaman:

So my teacher told us that two blue eyed people can’t have a brown eyed kid and this kid in my class said “but both my parents have blue eyes and I have brown eyes”.  The teacher said “so you’re adopted”.  THe next day the kid came in and told us that he confronted his parents about it and that they said he was adopted but wanted to wait for the right time to tell him.