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.
The Ring Finger - The Meaning of the Ring Finger for Rings: Emotion, Creativity & Heart: Wearing a ring on the ring finger represents a connection to the heart, as it is thought to be closely related to the artery that goes to the heart. It is associated with our feelings of affection and love.
In many cultures, the left ring finger is reserved for wedding rings and engagement jewelry, although some people choose to wear a promise ring on this finger. A ring worn on the left ring finger can symbolize: Marital status - In most Western countries, a married person wears a wedding ring on the left ring finger. Many people think the origin of this custom stems from an ancient Roman belief that a vein travels directly from the left ring finger to the heart.