Why do I attract mentally unstable/ill and drug addicts?

I dress fairly conservatively, don't smile at all while in public or make eye contact (as to wane people from approaching me), but at least four crazy people a day target me and start going on about me being "very attractive". People even try to strike up conversation by telling me they "like my style" when I'm wearing a cheap, plain LBD. No normal people try to make small talk, never mind a hot guy. I don't understand why crazy people find me so easy to approach, maybe you do?
Why do I attract mentally unstable/ill and drug addicts?
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