Closest I came was living like 2 houses away from an undercover cop who was helping deal with a drug lab house in the middle if our block. Never saw them much, nor was I opinionated on cops since I was in maybe 3rd grade when this was happening. So nothing too big. The drug house was taken care of and nobody else on the block were harmed, but kinda fucked since it was a block full of kids at the time.

Nowadays, in that situation, I would do my best to avoid the cops and drug house as much as possible and not get onto either of their radars. Not 100% sure I would feel safe, despite the fact that the bus route I take always has me waiting by a cop building while having had zero incidents over the few years I've been taking the route.