Interesting in this context is completely divorced from morally good/bad. Could be any group from any area at any time in history. I’ll start with a few, followers of the cult of pythagoras, contemporary black Hebrew Israelites, antiracist skinheads and the Amish (neo-luddites in general). Don’t be racist or a prick to other people discussing.
Knocking with your feet to pretend there is a ghost is still an alive and well practice. I don’t have exact instances on hand but John Wolfe on YouTube has covered a lot of ghost hunting content and some people in there do it.
Today there are more technological ways to create ghostly knocking using various devices, but if the “ghost hunter”/“medium” is taken to a location they can’t prep beforehand, some of them still do basic knocking tricks.
I don’t remember the specifics since it’s been a while, but I think these are the John Wolfe videos that cover fake knocking
https://youtu.be/lmduRz2EGhM https://youtu.be/1_MT1n_Yz2E
monkey.jpeg