Events sometimes use their building skill, which is the Level*10 + Hag potions, Equipment, Ingredients... depending on the building. Sometimes the use the skill of a worker, and sometimes there is a random chance. Some events can't happen if there's no worker with a particular skill, for example, if a master is looking for a proper apprentice, finding no one with enough skill is the disappointment. The events with the masters, however, pop up too frequently, they have been made less frequent, and of course some events could change, but I will need something more specific if you have a suggestion. Also, I'm not sure the comments here is a proper feature request / bug report platform. Please report to the discord, or send me direct messages.