I thought that I saw somewhere that you can burn down Rayford's house after you rob it... I have tried but been unsuccessful. Maybe I am just thinking of the monastery in QFG4?
Unless that's been something new added to the QFI 2.0 beta, I don't believe so...
At least, it's never been present in any of the Infamy Points list or Achievement list that I've seen from the developers (from back in the day) -- and doing something like burning down Rayford's house should most DEFINITELY show up as an Achievement or score MAJOR Infamy points.
You _CAN_ burn something else down to obtain a spell component, however.