Most amusing thing I've seen about them:
Every time I sneak up on a pack of Jackal Gangers, they're always standing around a crow watching it.
Like they're worshipping it or something.
Rofl, I've had this experience as well.
It made it insanely easy to snipe them from a distance. They're all standing 1 foot apart from one another... they are so fixated on that crow that they don't notice their buddies slumping headless to the ground one by one. ^.-