Father's Day is fast approaching and if you haven't figured out what to give your dad, how about this? Get hooked up to a polygraph and let him ask you some important questions. You'll have to tell the truth.

You have to believe these sons and daughters have a great relationship with their dad to even think about subjecting themselves to a lie detector test.

It's that trust between the children and the dads that is something the dads can be proud of. When one dad asked his daughter if she really meant it when she gave him a world's greatest dad shirt and she truthfully answered 'yes,' that moment was probably the best Father's Day gift any dad could ever get.