The grandparents like my blue hair, haha. I got this from my grandfather the day after he heard:

As you know, your ancestors came from England, which means many of them were Celts. And the Celts dyed their hair and bodies blue before going into battle. They also went into battle naked having decided that armor was for wimps. So congratulations and thanks for renewing this long but forgotten tradition in our family. The blue hair is sufficient tradition resurrecting for now. Do not tell your Mother I am suggesting you sally forth naked.