You searched for FUMBLE
1. fumble
Syntax: fumble
Thieves have the ability to slow their heartbeat; in the act of doing so,
their pulse slows and their hands become extremely steady. Thus, they no
longer fumble while quaffing potions in battle and have a higher chance to
throw a potion into a room and have it shatter properly, transferring the
potion's effects to the room. If the thief is able to eat corpses to
regenerate health, this skill also increases their chance at doing so
successfully while in combat.
The victims of the fight, however, will become less successful at quaffing
potions if they are not affected by the fumble skill. It will cut their
chances in half. The same goes for throwing potions in rooms and eating
corpses to heal while fighting.