Disgust is a feeling you get when you realize someone has double-crossed you, or they have stabbed you in the back. Disgust is felt when the one person that you counted on to save you in the trying times in life does not fulfill that promise. Other times, disgust is felt when you think that something serious as a military drill team where concentration, dedication, and military bearing are essential should be followed, all the members of the team goof off and take very little consideration towards it. This emotion rivals anger and frustration; well, it could eventually lead to them.