Funny Doctor: Doctors save our lives and some doctors even go to the extreme level of dressing up like clowns to make their patients feel better. Well, I guess now you should be really scared of clowns. Many people believe that laughter is the best medicine to help cure many patients from almost all kinds of diseases. When you were small, I'm sure you would have played an imaginary doctor with your friends, but this picture of using gas cylinder for oxygen was super funny and I really hope it was an empty gas c...