If I scale units to a foot...

...Will Unity's physics engine hate me for it? I'm asking because for my purposes units being a meter is simply too big. It also didn't like being divided by three. Is there a way to get Unity (like through a script or something) that can recalibrate the physics engine to that of feet as opposed to meters?

 

i know its not what you want to hear, but i'd have to advise that this is a really bad idea.

If YOU absolutely must work in feet, then convert your values to metres wherever you plug them into unity. computing works in metresm, generally.