Did you know about this? Did your mother (or father) teach you this??? Because mine sure didn’t!
BERLIN, GERMANY - JANUARY 16: Alpine mountain cheese awaits visitors at a stand at the International Green Week agricultural trade fair (Internationale Gruene Woche) on January 16, 2015 in Berlin, Germany. The International Green Week is the world's largest agricultural trade fair and is open to the public from January 16-25. (Photo by Sean Gallup/Getty Images)