Never!
I have a fear that if I entered a buffet/all you can eat joint, I would be susceptible to a crazy feeding frenzy. Attacked bodies, carts, screamers, panic set in when it's become apparently clear the lone buffet feeder eating out of the #2 troughs has went bad and physical biting and tearing limbs of. It has been reported he is taking large chunks of flesh into his teeth followed by a low deep growl. BOOM! Got knocked down hard I see a film of blood on my sunglasses and than notice half of my arm laying in front of me with a bite mark the size of a baseball on it. As I saw the arm laying bleeding out of my grasp, I passed out but the camera man behind me focused on the mutilated limb for 20 secs before fading the shot to black and throwing it back to the station. Of course the bubble headed beach blonde has the obligatory menacing sneer, caked on make up from puking this morning from to many glasses of Pinot. She just shakes her head.
And that is why I avoid buffets, that and the fatties, oh and their usually shiny salted food.
Not my dining scene, I eat out quite a bit and never go to buffets aka the feeding troughs.