After opening the door, the user may manually “flip” switch 40, changing {TAIL ~ apparatus} 38 from {HEAD ~ an “OFF” state} to an “ON” state 
After opening the door , the user may manually “ flip ” switch 40 , changing { TAIL ~ apparatus } 38 from { HEAD ~ an “ OFF ” state } to an “ ON ” state
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH