Sitting here watching POTC:Curse of the Black Pearl and I can't help but wondering: after a while of fighting against the dead cursed zombie skeleton pirates, a pirate or sailor would realize they could not be killed.
At that point you'd either:
1. Give up and get killed
2. Run/swim like hell
Personally, I'd opt for #2.
In the movie, they just keep fighting them and actually go back to the ship to fight them some more. At some point, you'd think someone would turn to his friend, fellow sailor, the captain, etc. and say "Hey, what the hell are we doing fighting against these guys who can't be killed? Let's go have some rum."
You'll also notice that once the curse is lifted, the crew of the Black Pearl surrenders faster than you can blink.