Life would be dull without a few oddball moments. Humor helps us all to enjoy the things in life that are mundane. It is so much better to be involved in your teenagers life and pay attention to the things they are doing. A great parent knows the types of music, friends, activities their teen is involved in and helps them to sort out the good from the not so good for them. I must have raised my children right because they are the type of parents who care and are involved. Showing he is paying attention is my son-in law as he signs along with our granddaughter as she takes a selfie.
I applaud your odd-ball behavior and say way to go Dad.