When {TAIL ~ a first user} places {HEAD ~ a receptacle} against lever 57 to obtain ice, switch 40 actuates control circuit 60 
When { TAIL ~ a first user } places { HEAD ~ a receptacle } against lever 57 to obtain ice , switch 40 actuates control circuit 60
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH