There is a cute, short 2008 video I happened to see on Facebook called "Validation" starring TJ Thyne. It received numerous awards and has over 6 million views on YouTube. It is a sweet fairy tale about a parking attendant who validates. I have found that dogs and cats are particularly good at validating. Here is a wise bumper sticker offered by talented Zazzle Pro-seller Claire of the UK at PhotographyByPixie's Store at Zazzle:
