Best warning for a wiseguy before be gets whacked

[Dillinger4]

"excuse me, I am probably going to have to 'whack' you now, if you don't mind terribly"

 

[jodal]

Hey Dino, you've got something stuck in your teeth.

Blow! Blow!

 

[subversplat]

No, the original. Was there a remake?

No, err, it's just, umm, I don't remember any Wiseguys in Unforgiven....

 

[kyser_soze]

Henery Hill:

I knew it was the cops right away. All that shouting and noise. A wiseguy wouldn't make that noise, they'd just whack you'

Goodfellas, Henry's arrest...

 

[isitme]

'Can you, can you get me off the hook sal?'
'Can't do it Jim, it's too big, but this is just business, I always liked you'

 

[D'wards]

C'mon, c'mon, c'mon you fucking cunt

Okay, not strictly a wiseguy, but whacking an FBI informer

 

[fubert]

You're a cantaloupe.

 

[Johnny Canuck3]

Best wiseguy warning:

 

[pk]

"wake up! time to die..."

from Bladerunner. (though he doesn't actually manage to whack him)

 

[Meltingpot]

No, err, it's just, umm, I don't remember any Wiseguys in Unforgiven....

I think the wise ones were those who left the bar before Clint started shooting.

Seriously, the only one was the character Richard Harris played who got beaten up by Sheriff Daggett (Gene Hackman), jailed and run out of town. The sheriff didn't say a lot to him except something along the lines of, "If you value your life, don't come back."