If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
It's possible to send signal A and the other person not understanding what the signal means and doing nothing.
But it's also possible that they don't understand the signal but the signal causes them to feel a certain emotion and that emotion lets them engage in an action without them having any idea of the casual chain.
The more I learn about how humans work the more I get those practical ethical dilemmas. Even worse, to really know what I'm doing I have to experiment and I'm curious ;)