Skinny( Unearthed Arcana, p. 90)
You are very slender for your race.
You gain a +1 bonus on Escape Artist checks. Drawback: You take a -2 penalty on Strength checks to avoid being bull rushed or overrun. Roleplaying Ideas: Skinny characters tend to be pushed around by tougher types, so those with this trait might be shy, or they might be very defensive when faced with such situations.