What's the biggest realization you had from a context of a conversation where you had to act normal to protect someone/yourself?

A friend I used to know (Friend A) had planned a birthday party for a current friend (Friend B), I had not been in touch with A in ages and his life and work was a mystery to me. He lived in a house with two strippers and all three were studying in college and that was about all I knew. B tells me and a couple of others about getting together for his birthday and A tells me that he plans for strippers to dance for B, so I accept the invitation and everything seems fairly normal, given the weird circumstances.

We arrive at an apartment that I presume is rented by A and right off the bat, I see a large book that looks like one of those false safes and sure enough, one of my other friends whispers to me, "I bet he has drugs in it", joking to me because of how ridiculous it would be. Sure enough, there's a large bag of weed sitting in it and a few vials and some other items in the book. We close it up and immediately sit down, say nothing, and when I get the chance to pull him aside, I tell him, "Once B's party goes underway, we leave after an hour or so with B and we never see this dude again."

Hours pass and we're in A's home, the strippers are studying for class and A is getting calls left and right on his phone. Every knock on the door, we're ready to bolt out of there, but thankfully it's just more of B's friends. The entire atmosphere is fairly boring, but it isn't until A gets a call where it sounds like an argument that B and my close friends leave immediately.

A turned out to be involved with some heavy drug dealers and honestly I only remembered him being this kid I used to play Halo 2 with, thankfully he has changed his life around, but god knows what would have happened if we had stayed with him during that heated scene.

/r/AskReddit Thread