Shelia ; (nocheruper) sounds crude BUT way/way back in sinpliar times , many ship yard workers who lived close to the yards relied on the dock yard steam whistles to start or go to work .Some early risers relied on company paid nocherupers whe banged, were paid , on there doors to wake them up. Ocassional in E/Coast company I revert back to " okay then I will nock you up in the morning" meaning of course - call you.