I discovered one of my neighbours is madder than a bag full of cats on acid this morning.
He's an old boy I say hi to on my walks and I got caught chatting to him.
Full blown flat earther/conspiracy nutter with religion mixed in.
I've known lots of crazy people before but I've never had someone tell me gravity doesn't exist or that viruses don't exist because how can something that small hurt you.
On the plus side there was no ranting and raving or spittle flying just extremely bad logic and blatant ignoring of reality.