Provide the theme summaries for the following conversation: 

Robert: what's up with all these facebook posts from Maria?
Audrey: what do you mean?
Robert: she has some weird coaching posts about diet etc.
Audrey: ahh.. that
Robert: ye, she is selling some magic juice pills lol, what kind of scam is that? :D
Audrey: now i remember, yeah she tried to sell me those aswell hahaha 
Robert: did you get them?
Audrey: of course not, i am not dumb lol, i told her to get lost ;)
Robert: she is probably caught up in some pyramid scheme

Summary: 
Maria has been putting unusual posts on Facebook regarding diet. Maria has tried to sell pills to Audrey, but Audrey wasn't interested.