I remember attending a trade convention in Toronto where they were showcasing this block of pure gold around the size of a loaf of bread. It was surrounded by Mounties but they welcomed me to come forward and even asked if I wanted to try and lift it. My God that thing was heavy!!
Then as I was about to leave, they said βHold on sir, show us your hands.β I did and they said I was good to go. I asked what that was about and they said some people try to scrape a bit off under their fingernails as a souvenir since gold is one of the softer metals.