So I had a couple "Elders" come to my door today, and like an idiot I gave them my (real) name and (real) phone number. They told me they will be giving me a call and coming back to my place (they wanted me to join some young-adult program), but I'm not interested in their BS at all (although, those magic underpants do sound pretty cool.

).
I'm pretty sure a simple "thanks but I'm not interested" won't do the trick (at least it hasn't before), so I'm not sure what I should do to get the point across.
If anyone has any ideas of what I could do, please let me know!
(By the way, I know this thread has massive potential for funny suggestions, so feel free to post those too. Haha!)