Some recent discussions of ISPs’ presumptuous attitudes as “owners” of their customers’ bit streams, especially this one,
https://www.techrepublic.com.com/5208-6230-0.html?forumID=102&threadID=247599&messageID=2386536
have reminded me of a thematically related news story about an even more intrusive method of non-consensual communication with people whose patronage is desired.
http://www.holosonics.com/PR_AE.htm