All 4 said "Carl?"
At the end when Carl is saying his goodbyes all four people's last word to him was "Carl?". Like they had more to say or ask but Carl walked away. This has bugged me for years.
Does anyone think Billy Bob meant any significance to this? Like maybe if just one of them had followed Carl and continued the conversation perhaps he wouldn't have busted Doyle's cranium? Even Doyle might have been able to talk him out of it if he had been more than his usual hardnose redneck act.