Forum Moderators: phranque
My experience over several decades of business says don't focus too much on the ways you might get ripped off - focus on how you can do the very best for your customers.
Even if a business loses on the occassional transaction, that doesn't mean they don't succeed. Success comes not by win every possible battle and super-protecting every flank. Success is having LOTS of happy customers. That's an expansive mode, not a squeeze-out-every-penny mode.
Keep that expansive focus that and you will succeed overall (and yes, you will lose a few, but just a few, battles.) If you start treating every situation as if someone is trying to rip you off, your success will most likely be limited.