Needle and the Damage Done

Recently one of the library branches suffered a terrible clog in its public toilet. When the plumber came to deal with the mess the manager told him to be careful of needles, the probable source of the obstruction. The plumber looked at her quizzically and asked,

"You mean pine needles?"

Isn't that sweet? He obviously isn't from the city. I wonder if the libraries should just admit defeat and install needle safety disposal canisters in all of the public restrooms.