A busser returns an untouched bread basket from a finished table and asks if the rolls can go to the next party since no one seemed to touch them. What should the manager say?

解析

Once unpackaged food such as bread has been at a guest's table, the operation cannot verify it was not touched, coughed on, or otherwise contaminated. It must be discarded; appearance is not evidence of safety. There is no time window that makes returned bread servable, reheating it does not undo contamination, and the server's view of the table is not verification. Only unopened prepackaged items qualify for re-service.