I have a 100 sneak AND used a stealth boy...
When I tried to enter the building stealthed, I managed to steal some misc items, but when I tried to take the caps he noticed.
Anyone have an idea of what might have happened, because I missed out on the repair perk that allows you to repair items in the same category. So now my awesome Enclace Renmant armor and helmet will wear off, because I have broken all the casinos, so I have no huge source of money...