Quite!
This could be a reasoned debate again.
Jim and I now agree that this is a mainly BP crime.
I would like to consider some explanations, but have only seen the one already mentioned and rejected by Jim, Steve, Lox, and Don.

You must have an opinion Jim.
Lox, you thought you had some explanations, but then you didn't.
Anything now?
Don, you had that one but it imagined just a single group of mates.