Clean Yourself Up, Hobo
Napkins are a godsend in situations like picnics where you do not have access to running water. They are also good in just about other situations where food gets involved. If you do not have them, you can sometimes find yourself in a sticky situation, otherwise known as a quagmire.
That is to say, with stick fingers and even an ant problem if you are a kid who seems to have no concept of cleanliness – at least yet. This dad wanted to remind his kid about how lovely they are, while slipping in the fact that they needed to clean off their face!