An Honest “Like This” Pic on Facebook

So I am not sure of the original origin of this photo because it is being passed around Facebook so much, but I love it! There are so many of these types of "Like this so we can get something" photos being passed around that I think that they have kind of lost their charm.   This one is original and I applaud these parents for teaching their kids a lesson while having some fun and in a round-a-bout way, teaching others as well. What are your thoughts of the "like this so we get something" posts? I mean some of them are kind of heartwarming but most are pretty superficial.