black bbq

Let's say your invited to a bar-b-que, b-day party, etc. It's starts a 6pm. How long are you staying if they slow to serve food? Now, obviously if you know they on cpt time, you don't show up early. But let's say you don't know. What's the time limit? 2 hr, 3hrs, 4hr? Or more? Me personally, no...