Forgive me papa but at first I thought those were question marks by your kids inferring that they were perplexed and "questioning" why @papa-pepper had not washed his car . Yep I know, that's not nice of me  ;) 

But don't worry if it's any consolation this last month I went a couple of weeks ( as well as my wife) with dirt all over my car. Much worse than this. It happen to the best of us  sometimes  :)