Every Yeshiva Bochur worth his salt knows that there are FOUR major categories of damage: Shor - Ox [Ox does damage], Bor - Pit [harm caused by ones pit] , Maveh - Tooth [animal consuming others produce], Hever -Fire.
Listen to the Heilige Ba'al Shem Tov in the Tzavaas Harivash: Four major damagers in Avodas Hashem.
Shor - From the word 'Ashur' which means to see. Looking at what is forbidden KILLS your Avodas Hashem.
Bor - A sdeh bor is an empty neglected field. This means batala - wasting time. That DESTROYS your soul.
Maveh - Tooth. When a person overeats - BAAAAAAD!!!
Hever - Fire. Anger. Anger is the most reliable servant of the Satan.
GESHMAK!