A system and method for protecting a motor drive unit from an associated motor includes a motor drive unit protection system. For that purpose, communication nodes 2, 3 and 4 each emit diffuse light carrying a pilot signal blinking at a low frequency to notify the presence of the communication node and an ID signal belonging to a higher frequency range, the ID signal containing inherent address etc. The end effector assembly also includes a splitter configured to receive an active signal from a source of microwave energy and split the active signal into a first signal transmitted to the microwave antenna assembly in one of the jaw members and a second signal transmitted in the microwave antenna assembly in the other jaw member. To ensure uniformity in the simulated phishing attacks, messages thereof may be constructed from template messages, the template messages having placeholders for individual-specific and company-specific information. In one embodiment, the on-off controller comprises a body having an inlet, at least one outlet, a vent, at least one connection bore, an activator positioned in the body, a position mechanism configured to move the activator in the body, a seal configured to sealably contact the activator and seal the vent, wherein the body may connect directly to a paintball marker. The racing horses to start a horse race are expressed by means of computer graphics, the existing past data associated with the racing horses is retrieved into the computer graphic horses, and a virtual horse race is started on a display screen, so that a finishing order of the horse race can be predicted according to an action and a result of the virtual horse race.