What circumstances are those? There are a ton of homeless Americans where I live and the embassy doesn't do anything until they commit a crime as far as I know.
As a teenager I realized that I could get away with anything because of how I looked. I could effortlessly shoplift whatever I wanted and did so for many years. Later on I got away with selling drugs for a long time, including being pulled over but not searched with a quarter brick in the trunk of my car! I did get raided later but got very lucky as I had mostly cleared house and they did not find the several sheets of LSD in my freezer.