by MaineCoonCat
I remember as a kid in the early 1960's boarding a PCC at "Riverside" with my father on our way to visit my Grandmother who was a patient at the Pratt Diagnostic and seeing clearly written in "magic marker" behind and near the operators position; "Pickpockets are on duty for your convenience"..
Seen behind the motorman on the inside wall of a PCC departing "Riverside" many years ago: "Pickpockets are on duty for your convenience."