Our happy hour fact to amaze your drinking buddies with.

About three-quarters of parents with teenage children are friends with their kids on Facebook.

Nielsen surveyed parents and children between 13 and 17 on their Facebook habits. They found a big part of the reason why so many parents and children are friends on the social network is because 41 percent of households have rules that kids must approve their parents' friend request. About 20 percent of parents can also demand that their child de-friend someone they don't care for.

As for the kids, they are more than twice as likely to want to un-friend their mother than their father. And more than half of 13-to-17-year-olds concede they don't personally know all of their Facebook friends.

We wonder how many kids on Facebook act like they don't know their parents after they become friends with them. Feigning that kind of ignorance has to be a lot tougher than hiding behind the sunglasses kiosk when you spot mom at the mall.