It is not exaclty a bug, but... Well, I have discovered that naked bathhouse clients have at least few coins stored somewhere. And one of them even had a stiletto. And my rogue pickpocketed even that, making me unable to get rid of mental images.
Beguiler's Soul Whip does not recognise stealth attack as "sneak". Dual rogue/beguler makes attack from stealth on target without any afflictions - rogue sneak attack bonus applyed but soul whip has partial damage bonus and lowered restoration of focus.
Upd: Same with Whisper of treason. Attack on charmed target is sneaky enough for rogue but not for beguiler's soul whip.