Using a plunger (ir)responsibly

A couple of months ago, I bought a plunger. There is nothing noteworthy or newsworthy about that, though I found one particular detail odd.

On the handle, there was a short note that stated: please use responsibly. Is this wording found on every plunger? Or did this particular manufacturer feel the need to put such warning on the product? Either way, there must have been cases of irresponsible uses of plungers to prompt such message. This piqued my interest, in that it naturally raised the following question. How exactly does one use a plunger irresponsibly? I probably don’t want to know.