Huge mistake - don't ever do that !! And if the dealer you are visiting told you that - I'd suggest that you look for a new dealer.
You bet I will. It came about because I had a bu coin he wanted for his collection. I actually had 15 of the same coin with the same anomaly... so I took it out of the album and handed it to him. He was horrified that I touched it and said soap and water will clean it okay. That is why I gave the wrong information... and thanks bunches for letting me know. jeankay