Bit early for Halloween.
But we have been through some scary times.
Catching things unaware.....the importance of one's visual field is amply demonstrated.
Via the startle reflex, an instantaneous automatic protective muscular contraction response elicited by an abrupt & intense stimulation.
Not so easy to act.
Requiring of looking glass inventiveness to film.
To Pilotpriest, Richfofo & the all Directors of making us jump for entertainment -
it's laterally inverted beside - not behind - thank boo!