I have nothing but contempt for these people. They not only effectively steal from vulnerable and distressed people, but they use the sessions to try and sleaze on them.
I’d happily have a law which says anyone who claims to be a psychic but can not pass a controlled test of their powers with at least a 50% accuracy rate should go to jail for fraud. They really are parasites. Hell maybe even a 10% accuracy rate – I doubt any psychics would even manage that unless it was a multi-choice test.