http://www.nashuatelegraph.com/news/951181-196/dont-ask-nashua-janitors-to-watch-cement.html
'Arbitrator John Cochran, of Newton, Mass., said watching cement dry was not within the “primary scope” of a custodian’s job, which is defined as maintaining school buildings and grounds in a clean, orderly and safe condition.'
'The custodial union, AFSCME Local 365, filed a grievance last spring after several custodians at Elm Street Middle School were asked during their regular work hours Oct. 8, 2010, to watch over a set of new concrete panels on the walkway leading to the school entrance.'
'In his ruling, Cochran called the work “qualitatively different” than their normal duties and therefore outside their classification.'