a hypnosis Gun in springfield

At Patty and Selma's apartment they receive a mysterious package marked as "Sublimal message sound machine?

a group of figures in the shadows open the package revealing that inside there is a gun that has a keyboard on its back, a small computer screen

a feminine but raspy voice pulls out the instruction manual and reads:

"Step 1: Type Command _ / (the sublimate message you want to implement"

Step 2: Point to the person to whom you want to implant this message

step 3: pull the trigger

if he did everything correctly, the implanted message will become a reality in the mind of the affected person "

right after saying that the figures in the shadows started laughing