Advice on Changing Pads in a Parking lot

No!
I have a M/T and I think it's possible to get 8 or 10 times that amount of miles out of a set of pads in street duty.
And I cannot for the life of me, imagine how a bent frame can cause premature brake pad wear. A pull while driving, yes. Premature pad wear, no!
Go back to posts 35 and 36, something is wrong, with the brakes!
Alright. I'll hop underneath next chance I get and see if the piston isn't retracting when I let off the pedal. What is the best strategy for getting the pistons to retract?
I was hoping I would get someone who knew what the life should be, I was thinking that the pads wore a bit too quickly, and looking at the driver's side pads, I can see how they would last 10 times longer than the passenger side did.