"Laner wont help in a gank"
Do i have a bitchload of minions crushing under my turret?
Is enemy laner already backing?
Will gank potentially ruin a desirable stalemate?
Am i freezing the lane?
Is enemy laner ahead enough/plays a champion that can turn on us 2v1?
If you answered yes to any of these then "shut the fuck up" and "stop blaming your laner!"