I'd say it's one of those things where you should almost never run, but there's like 1 case in 100 where it's ok. I ran once when the police showed up a field party (I hadn't been drinking but I had pills in my pocket and weed in the trunk). After running away we were able to eat the pills before returning to the party area, where the cops questioned me, I said I was scared so I ran, and then got to drive away with my weed because I hadn't been drinking. And they were cool because I hadn't been drinking and my story made sense--plus I was charismatic from snorting a bunch of Dilaudid lol