Call it coincidence if you like, but I've found many instances where the Lord took vengeance when I decided not to. These are just the instances when it was hard to ignore, so they serve as clear examples.

When I was a lost young man in the drug scene, there was a guy offering deals too good to be true. I was skeptical and when I checked around it turns out he was known for robbing people and therefore was trying to rob me. Several months later he was killed in a robbery gone wrong.

Next, some sodomoite in college said some unkind words to me that seemed very unprovoked. I remember just shaking my head at him and leaving. Mind you this is a time in life where I could not afford another strike on my record let alone expulsion, so I was forced to be peaceful. Later that year the young man hung himself.

After that I was living with some roommates. Some random guy from the local college befriended my roommate and with a sob story this freeloader ended up living in our already cramped house. He was defrauding us, since he was only let in under promises of money coming in. He knew damn well money wasn't coming, so after that became apparent we told him he needed to find a job. But he kept making excuses.

So this guy eventually did find a job (at what point I'm not sure, we were no longer living in that house together). He managed to piss off one of his fellow employees to the point he was stabbed to death.

So in conclusion, we should all fear the Lord and treat each other better. It is better if we don't try to "get even" with anyone despite what our flesh wants. Food for thought.