"I'd be so very appreciative if you resolved not to contact me again!"

Some years ago, a person in my household who shall not be named made the mistake of buying some drugs off the internet. Now, with ever-increasing frequency, we receive calls from illicit on-line pharmacies. all hours of the day, sometimes one after the other. Telling them not to call doesn’t work; telling them we are going to report them doesn’t work. I have warned the callers of dire consequences to future callers, and now have to find some actual consequences to inflict.

My new practice, when they reveal who they are and their purpose, is to  give a blood-curdling, high-pitched scream directly into the phone, as loud as I can make it. I am certain this is startling (I have a great scream), and I hope it is painful. I would not be sorry to learn that it bursts an eardrum or seven.  Plan B…an airhorn.

Is this unethical?