No it most certainly isnt, to break all the bonds in the glycerol you need to put in an enthalpy of +6974 and the energy released when the bonds reform is -5852, so you get less energy out then you put in so it wont burn.
People often wear a ring on their index finger to demonstrate assertiveness, or power. The Middle Finger - The Meaning of the Middle Finger for Rings: Identity & Materialism - Being the tallest finger, the middle finger is associated with our purpose in life.
They can be worn on any finger, but those symbolizing pre-engagement (also known as promise rings) are generally worn on the left ring finger; sometimes, the left middle finger or right ring finger is used instead to prevent confusion with an actual engagement ring.