On Live, one could teach a langage to someone else up to 1 point above their skill level (for example player A has a Teir'Dal skill of 66, he could teach player B this skill up to 67). It made no sense whatsoever but could be used in an interesting fashion: you only needed to have 1 player with a skill of 1 to increase his skill and others' up to 100 (player A teaches player B up to a skill of 2, player B then teaches player A up to a skill of 3, etc...). We did it with some friends on Live, took ages but was definitely doable.
Edit: didn't see Reiker beat me to it
[You must be logged in to view images. Log in or Register.]
Nagash/Petitpas