Where I live we have Meade Ministries, also known as the Endtimers. They are a christian sect, formerly lead by Charles Meade, that believes that we are in the prophesied biblical end-times, and that God spoke to Meade and warned him to bring his followers to Columbia County, Florida, as that would be the only place saved during the coming apocalypse. Us natives were naturally chagrined by this when the Endtimers started moving here in the mid-80's. They began buying property south of town, and opening businesses in town. They only hired others from their church, but their business was open to everyone, and they worked in all manner of small businesses, from car repair to several Little Caesar's pizza franchises, and frozen yogurt shops. When their buying power got to be a bit too much for the locals comfort, there was a (non-violent) pushback, as it seemed they were trying to buy up the whole county and remove non-believers. Around this time, 1990-1991, they gained national attention, and 20/20 and a few other newsmagazine shows did segments on them.
All of their children were home-schooled, and they were forbidden from interacting with any non-church members. The women dressed in simple, very old-fashioned clothes, with no make-up and long, straight hair. Most of them lived on the edge of poverty, as they tithed something like 85% of all income to Meade and the church. Meade himself was a recluse, and was rarely ever seen outside of his huge house. Eventually they built a massive church in an undeveloped part of the county. Meade himself finally died, and the church splintered a bit, with many families moving off and their businesses shutting down. I guess they got tired of waiting for the apocalypse. Anyway, that was my personal brush with religious nutjobs. And that's not even mentioning the very large Mormon population (big enough for two temples), as well as more evangelical fundies than you can shake a snake at, several of whom put on huge, expensive "Tribulation House" events every year to try and terrify the non-believer into finding their way to Jesus. I used to go every year to marvel at the extravagance of their Hell House productions, but it got repetitive, and one fundy tried to start a fistfight when I wouldn't prostrate myself before their model Jesus on his heavenly throne in the final room.
Check out that movie for a good idea of what it's like, and for a good laugh or two.
Here's a pic from inside the Meade temple...now renamed the Mountaintop Ministry