Psychic Readings Without Permission

I thought I was done posting for the day, but I have sort of an educational post combined with a rant. First let me say I am a Psychic Medium. However I don't do readings for people unless they ask and I feel they really need it. I just don't like people coming back asking the same questions over and over again. I feel people become dependent on a reading to help guide their life.

Theresa from the TV show, Long Island Medium, says she is a psychic and after watching the show I'd say that she has some ability. However she walks up to people and starts doing readings without their permission. I understand when a spirit really wants to communicate. I also understand walking into a crowded area and just feeling anxious and needing to say something to someone. However you CAN control it. This is what Theresa is not doing and to me this behavior indicates that the reader is not quite as adept as she believes herself to be. It is also incredibly rude IMO to read someone without their permission. She says she can't control it. There are ways to control such as Psychic Shielding which I've discussed previously in my Spiritual Protection post.

If you are a psychic medium, how do you feel about this? Is it OK in your opinion to walk up to someone and start reading without their permission?