I have been a Street Pastor for the last seven years, we go out on the streets until 3 - 4 am, coming into contact with drunks, drugs, angry people, fights, homeless, suicidal and of course lots of wonderful people too.
It is wonderful being a Catholic and praying together with Christians from eight denominations. I can only say that prayer has given me a profound sense of peace, even when we are in the middle of people punching the living daylights out of each other.
We give thanks to our Lord constantly, so far all the conflicts have ended with apologies, handshakes and hugs, this just would not happen without prayer.