There are two roommates in the apartment complex I live in which I recently discovered are both heroin addicts. They had invited me over one evening to drink with them, and while we were all pretty toasted, they just started pulling out their needles and asked if I minded that they were shooting up. I told them that I didn't care, but I was not interested in doing any of it myself. Admittedly, I've done almost every drug out there other than heroin at some point or another, and have had my own problems over the years with alcohol and cocaine addiction, so I wasn't going to be so quick to judge them - since plenty of other people in my life have seen me a mess on coke and booze. We had also been open with each other about our previous bouts with various other drugs. I recall several times in my past when friends/acquaintances/coworkers of mine had complained about me to others with regards to my drug issues, making remarks like "are you sure you trust him to do that, since he's a big coke head", so I know what it's like to have the stigma of being a drug user from others who don't do drugs. My concern now though is what's been happening at our complex in recent weeks. We've already had some incidents where various washing/vending machines were damaged as if someone tried to drill the locks off to get the money out of them. There was also an incident where a car was stolen from our parking lot. I'm fairly certain this is stemming from them, and the people they are bringing over to their place. They are behind on rent as it is, so it's only a matter of time before they get kicked out, so I am debating whether or not I should even say something to the management or not or just wait it out. The problem is, I believe I'm the only other tenant in there that knows they are shooting up, so if the landlord confronted them about it, they would know it was me and perhaps retaliate in some way, such as vandalizing or stealing my car or other property. It's just that it can take weeks if not months to finally evict a tenant who refuses to leave. Would you alert management or wait it out?