Elaine's unusally extreme inebriation for the amount she drank, the unusual and sudden way she passed out when we got home, and her subsequent very unusual illness the next day match up with this. Sandi suspected this might be the case and now I am convinced.
Of course there is no way to tell who did it, but there is something I can do about it...
Oringinal post: http://mbarrick.livejournal.com/395904.html