Well the fantasy is that I get blackmailed into becoming a permanent toilet slave. The perspective would be as if you have called me over and sit me down to start explaining what the situation is. That after today I’ll be locked in a room, basement, dungeon, or whatever and not be allowed to eat anything but your poop ever again if I don’t want you to expose me. Also, just go into detail about what my daily routine will be, how much and how often you expect me to eat it and just generally try to make it sound like something I should be nervous about starting