I'll send what I have; it's a reaction to "A Wolf In The Fold", a season two TOS episode that has a malignant entity entering men's bodies and forcing them to murder women. At one point, it enters the ship's computer and Kirk tranquilizes the whole crew to force it into one person, who he spaces. The episode ends with all but Kirk and Spock hopped up on space drugs, and I wanted to do something with that. It's not too far in, but it's already taken a turn for the crack.