Incompetence

#quirk #rules_analogue #character_option
Quirk, -1 point

You’re inept at one specific skill. You cannot learn that skill, and your default is at an extra -4. You cannot be incompetent in a single specialty of a skill; if you’re incompetent with Guns, for instance, you’re incompetent with all guns. The GM may disallow Incompetence if the skill would be irrelevant to a given character, or is unlikely to play a role in the campaign.

This can also be found in PU6 p. 31.