I think one of the most embarassing thing for a sixth grader is to have a parent that shows his/her love a little too much. For example, this morning, I was getting out of my car, and I saw a father lean out of his car window to yell at his daughter as she was walking into school.
"Have a good day, baby! It's my baby's 12th birthday! Happy Birthday Foo Foo! Little Foo Foo's Birthday! I love you Foo Foo!"