I worked as a dental hygienist and had to explain to every new patient that I wasn't the doctor. Most had never seen a male hygienist and just kept calling me doc sam. I gave up and let them use that nickname. The second half is a tribute to my 3 children, who all are graduates of Vanderbilt University. They all did it on scholarships and student loans and what little mom and dad could help. I'm very proud of them and it's a small way to show that pride. Yes, they got there brains from there mother.