This actually covers two questions: getting help OOCly and getting help
ICly.
If you feel like you might need some help to rp a pkill or that you might need
to switch to OOC to explain to a new player what is happening, most immortals
will certainly agree to come and help you. Using question to warn them that a
pkill might happen is always a good idea.
Now, getting help ICly. With the nofight code, pkills last longer. It might
take 30 minutes real life to rp a talk that only last a few minutes ICly. If
this is happening in the eastern part of the world, you can't possible expect
people from the western part to have time to go there (at least, not without
some sort of magical teleportation). So, even if OOCly you have time to call
people for help, it's not fair to do it when those people shouldn't be ICly
able to get there in time. It is fair, on the other hand, to call people who
are near you or who can get to you by teleporting.