I did my water change today... just in case I'm not around to do it later. At least my livestock might survive until someone finds it.
In all seriousness though, it's sad to see so many people decieved. I'm a Christian too, and the Bible does not say anything about
when the end will come. They take the Bible and read it in a way that was not meant to be read. The Bible is a collection of letters, poems, narratives, and other literature which was meant to be read as letters, poems, narratives, etc in their proper grammatical and historical context. No secret codes or numbers and charts to be figured out.
The main message of the Bible is about God restoring a broken relationship with humanity. This kind of paranoid, end-times obsession takes the focus off of that.