Transvestite hookers, street trannys, like straight razors.
The straight razor is a dark, subculture weapon, kind of a sadists play thing.
Go looking for the straight razor guys, and you will notice that almost every single one of them is a dark and creepy type, who is looking to hurt people and mark them up.
I’ve never seen “straight-razor” people except on TV; the razors I described being sewn into hat brims years ago were the old disposable ones that were used for shaving (where you twist the handle to open the top, replacing the thin razor itself).