As an ADC main, I'm happy they're dead either way. I still at least get assist gold which is better than them getting away and no gold for anyone. Plus a happy Support = happy ADC.
I told a Brand support in one of my recent ranked games that I didn't care if he killed the opposing laners unless they had like 10 hp left and I was in range for the final auto.
Exact quote: "If you have any doubt I can seal the kill, nuke 'em."
Death is the best cc.
sugoiiii.
Go buy a lottery ticket then, because there's a higher chance of winning, than that happening
I'm usually shaky as an ADC and tell my support to take a kill if I miss it. The way I usually figure is I'll get the kills eventually, just have to be crafty like 
ONODERA KAWAIIIII
I got no problem with it if they take a kill or two by accident, it happens. And if you think I can't secure the kill, do it. If it happens five times in a row, I will start to get salty.
Im cool with that as long as the support doesn't start flaming me when I'm 0/2/6 and he's 6/3/0 because I'm behind and underfed and have to farm bot endlessly to keep up
Lies, it's impossible