I've seen this in two Toyotas now.
In the back seat of my 95 4Runner, two female ends of the seat belts (rear middle and driver's side) appear to be installed backwards. When these seats are occupied, the seat belts must cross each other because the male ends only fit into one female end. I've lifted the seat to ensure that they are not crossed underneath. I plan to simply unbolt and swap them, but thought I would ask if there was a reason for this because I have seen this in another Toy.
AG2