Not a black leather trench fan. Too many people wind up looking like a school shooting suspect or Neo.
Brown leather trenches, on the other hand, much easier to do. I have one I thrifted that I break out on occasion...really though, unless you live in an Arctic climate, you pretty much have to admit to yourself that it's attention-grabbing more than it's practical. If you can get past that, it's another nice overcoat to wear.