Using a psychic medium to communicate with the dead - anyone done this?

I would say that in ALL cases, they're being deceived. No one ever talks to their dead relatives. It's just an malevolent entity.

It's a sham...but your heart will want to believe it so much.

the dead are dead. don't start dealing with mediums or you just might start dealing with demons who will pretend to be your dead loved one.

It would be possible, but improbable. They are dead; let the dead sleep.

King Saul tried that; it didn't turn out to be one of his better ideas...

Yes it is possible. Many people do have the ability to hear those passed over. For me it depends on if the dead person is at rest, moved on. Or if they have some thing to say, left unfinished.
Yes there are plenty of scammers out there for a fast buck. Yes as in looking for anything from "Organic food" to reading the news paper. We all need to be aware of what claim is being made.

a fool and his money are soon parted

It cant be done. The proof is that no one has ever been able to prove they can do it. A million dollar prize up for grabs for proof, and not one single medium on the whole planet can claim it. Doesnt that make you wonder??? The mediums' excuse? Likely that monetary gain would corrupt their powers....hmmmmmm. Not likely, very convenient excuse really.
But hey, I am open minded and there was a time i did believe in such things. If anyone on here wants to prove me wrong by talking with my most recent family member that passed away, well I am never too proud to say I was wrong.