If you MUST flip the off switch on a large piece of equipment you don’t understand (say … a containment unit for psychokinetic energy), you better be wearing a helmet. In any situation where wearing a helmet is suggested, you should wear a helmet. Also, “jerk” has a double meaning here. Use that noggin you’re protecting and think about it.
This design was created in honor of the 30th anniversary of the theatrical release of GHOSTBUSTERS (an American classic to rival all the Disney princesses combined).