What you are describing is called an observer pattern . Could you post more code ? It ' s hard to understand what exactly is going on . <| sep |> No , but now it ' s on my todo list . <| sep |> It ' s SO WORTH the investment . I only did 3 sessions , and then moved to a country where it was much more expensive and not really feasible for me , but I ' ve probably only got 30 % of the hair that I used to have on my legs underarms . That was worth the investment , and whenever I can afford to do more sessions , I ' ll be picking it up again . <| sep |> Aw man , we can ' t compete with cyborgs . <| sep |> You would get iron poisoning if you kept doing it . Even drinking blood would kill you , eventually . <| sep |> Ah , but that is common knowledge . And because of that , I know threw Palp out of the figurative window and went with Gunner 1 . Personally I try to avoid hurting myself , so I don ' t like Vader and Baffles that much . Lately my preference has fallen on FCS and Hotshot Copilot .