Wrong target?

Have you heard about empty Walkers crisps packets being stuffed into post boxes?  It seems that said crisps packets cannot be recycled (although Walkers say this is being remedied) and so those who feel so inclined are making their protest by, as they see it, "posting" the empty packets back to Walkers.  Except of course that it's not really Walkers that are being inconvenienced, so much as the Post Office.