When to do something, and when to let it go. When it matters, and when it don't. Bide...

Wilson: How you doin' then? All right, are you? Now look, squire, you're the guv'nor here, I can see that. I'm in your manor now. So there's no need to get your knickers in a twist. Whatever this bollocks is that's going down between you and that slag Valentine, it's got nothing to do with me. I couldn't care less. Alright, mate? Let me explain. When I was in prison - second time - uh, no, telling a lie, third stretch, yeah, third, third - there was this screw what really had it in for me, and that geezer was top of my list. Two years after I got sprung, I sees him in Holland Park. He's sittin' on a bench feedin' bloody pigeons. There was no-one about, I could've gone up behind him and snapped his fuckin' neck, *wallop!* But I left it. I could've knobbled him, but I didn't. 'Cause what I thought I wanted wasn't what I wanted. What I thought I was thinkin' about was something else. I didn't give a toss. It didn't matter, see? This berk on the bench wasn't worth my time. It meant sod-all in the end, 'cause you gotta make a choice: when to do something, and when to let it go. When it matters, and when it don't. Bide your time. That's what prison teaches you, if nothing else. Bide your time, and everything becomes clear, and you can act accordingly.
Head DEA Agent: There's one thing I don't understand. The thing I don't understand is every motherfuckin' word you're saying