If you are alone mining low sec belts in an orca, no amount of stabs will save you.
If you are travelling alone through low sec in an orca, you might make it through if you are lucky (especially during quiet hours, in quiet regions) one stab might save you from a single random passerby on a gate.
Of course, the first thing that random passerby will do is shout “Orca!!!” on comms. No amount of stabs will save you from the camp that then forms up two gates ahead of you.