Cavity

Toxic mercury vapors are released from mercury amalgam dental fillings by chewing, eating, brushing teeth and drinking hot liquids. - 161

It is amazing how intensely you can squeeze the last bit of toothpaste out of the tube when you realize you forgot to buy tooth paste!
You can also cut open the tube with a scissors and scrape it out with your fingers.

Do not swallow the toothpaste, spit it out. - 652