I used to have both my phone and somebody else's registered on my Find iPhone in my iTunes account. That person and I have since parted ways on bad terms. I changed my passwords to make sure that person cannot temper with my account. That person's phone, however, has stayed in Find iPhone for me to see. I tried to remove it (only possible when it is turned off), but it reappeared.
The only option I seem have is to remotely erase the iPhone. Will the other person have any means to see that I remotely deleted it? Or will it just be erased? Follow-up: If they restore from backup, will they appear in Find iPhone again? I need a way to get rid of that phone from my account.
Disclaimer: I do not, under any circumstances, want to talk to that person.