Wizards can talk to the apprentices in their Quest home level to pay them for learning (possibly only low-level) spells. These are provisionally priced at 50 times the spell level times the player’s level, and is intended to serve as a dilemma for whether to buy spells or protection. (However, a single point of protection would cost the same as 8 total levels of spells, so the cost may need to be raised.)

Quest guardians which match your own race.

In variants where you can kill the quest leader to gain access to the quest: implement alternative dialogue for the quest guardians after you kill the leader.

If you attack a peaceful monster in sight of your quest guardians and leader, they give you a warning rather than instantly becoming angered.

The Norn and Valkyrie quest friendlies have different messages if you talk to them after having been changed into a man.