Gee. Where could anyone in the South learn to tie a Kreh loop knot, commonly used in Fly Fishing? That would imply that good ol' boys in the South go Fly Fishing.
Furthermore, that might imply that those ol' boys had Fathers that taught them fly fishing and the knot used to tie the flies.
Fathers in the Southern household? Heck, that's RACISS! Case solved!
Yeah, it’s a common household knot that you know about if you do anything around your house.