Expert

 improves 's success with any chance-based actions (notably all combat, repairs/dismantling, planet scans and fire fighting) but also increases his/her chances of accidental 2 injuries and becoming. This even affects actions that have no risk of failure (provided there's any chance of getting dirty/injured to begin with).

It synergizes well with the and  skills, as shooting from a patroller and scanning both come with high base chances, but low to zero risk of dirtiness or injuries.

General effects

 * Action success chances increased by 20%.
 * Chance of accidental injuries during actions increased by 20%.
 * Chance of becoming during dirtying actions increased by 20%.