I found a bug with Femme Fatale... the prices on the blackboard are not the same as the amount of money she wants to give... here is an example:
[18:29] <Femme Fatale> Look at blackboard on wall to see my offer.
[18:29] You read:
"We Buy Armor and Weapons:
robins hat 30
leather boots 25
dwarf cloak 60
dwarvish armor 9000
assassin dagger 8000"
[18:29] <Bluelads4> sell assassin dagger
[18:29] <Femme Fatale> 1 assassin dagger is worth 7000. Do you want to sell it?
[18:30] <Bluelads4> sell dwarvish armor
[18:30] <Femme Fatale> 1 suit of dwarvish armor is worth 17000. Do you want to sell it?