When I confronted him he took off running and I chased him and eventually tackled him and called the police who came and arrested him for stealing a satellite radio.

You need to prove that the TENANT is the ONE.I don't like getting involved with a one on one confrontation when it has to do with drugs, or fights among themselves or neighbors.  

This is not a way to protect yourself, you'll end up doing more harm than standing up on your own merit and confronting anyone who seeks an action against you.....if you conduct your business in an honest, above board, ethical manner, that's the widest moat you can possible build for yourself.

You must be firm you must stick to the lease you must enforce the rules of the lease even if it’s confrontational .

They will just get rid of it when you confront them. 

Your comments have been rude, condescending and ridiculously confrontational.

This eliminated nearly all of our profit, a simple mistake we should have caught on the front end.Mistake #4: We assumed the contractor was reasonable and not confrontational--After we fired the contractor, we hired out the items he did not finish, or did sub-par.

When confronted with an overwhelming negative response like this I would assume that a rational person would start to second guess what they are doing and want to get an opinion from an actual subject matter expert. 

Weather, it's recession speculation, convincing your spouse, confronting doubters, a baby on the way etc... there will always be something that you will use to hold you back.

No - last month I dropped by and found a medium sized dog kept there so I confronted tenant and he apologized.