Sadly, "using the bathroom" will cause a more immediate visceral reaction for most people than "maliciously manipulating your entire life via ad networks and media".

My first thought was of people who may have been wearing them while entering passwords or viewing sensitive information.

Do we really care what it is that will cause the visceral reaction? If I said it might reveal ways/means or private IP or any of a million other examples, few would really care as not everyone is involved in that. However, everyone goes to the bathroom.