According to another aspect, there is provided a method includes steps of sensing water, firing {HEAD ~ an actuator}, rotating {TAIL ~ a cam member} and linearly moving a releasing slide 
According to another aspect , there is provided a method includes steps of sensing water , firing { HEAD ~ an actuator } , rotating { TAIL ~ a cam member } and linearly moving a releasing slide
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH