One of my siblings is adopted but looks lots like me (genetic osmosis again!). Another sibling was born to our parents but has red hair and different colouring to the rest of us kids. (Dad used to have red hair but it's gone darker as he got older). If people found out that one of us was adopted, they would look at the red head!

It didn't bother us that much, the adoption wasn't a secret and wasn't something to be ashamed of. At times, when the folks were embarassing, we all tried to claim that we shared no genetic links!