You could always go with something made infamous by Parker.
Craven
( Champions of Ruin, p. 17)
[General]
Like most sly rogues, you are a dangerous coward. However, your sneak attacks deal more damage than normal.
Prerequisite
cannot be immune to fear, Sneak attack class feature,
Benefit
You take a -2 penalty on saving throws against fear effects. However, when making a sneak attack, you deal an extra 1 point of damage per character level.
This might come in handy too.
Conceal Spellcasting
( Complete Scoundrel, p. 85)
[Manipulation, Skill Trick]
You can cast spells without others noticing.
Prerequisite
Concentration 1 ranks, Sleight of Hand 5 ranks, Spellcraft 1 ranks,
Benefit
You can cast a spell without revealing that you are doing so. Make a Sleight of Hand check as part of the action used to cast the spell, opposed by the Spot checks of onlookers. If you are successful, an observer can't tell that you're casting a spell. That observer cannot make an attack of opportunity against you for casting, nor can it attempt to counter your spell.
And maybe this when you're a bit more powerful.
Quick Escape
( Complete Scoundrel, p. 88)
[Manipulation, Skill Trick]
In the blink of an eye, you can escape nearly any tight spot.
Prerequisite
Escape Artist 12 ranks,
Benefit
This trick has two options, either of which can be used once per encounter.
You can make an Escape Artist check to escape from a grapple or pin as a swift action. You can use this trick even if you have already used a standard action on your current turn to attempt the same escape.
Alternatively, you can make any Escape Artist check that would normally require a full-round action as a move action. You can't use this option more than once per day against the same kind of restraint.
