When do you Know You've DRAGED to much??

i post this because bout 2 or 3 years ago i found out fast i draged my blazer To much i got sevral people that can voutch for this ask mark that works at Ekstenive metal works in NC he fixed it for me.. but i litarly drug 31/2inches off the rear of my frame and all the way thru the frame rails they said i am lucky the thing didnt fall apart just wondering if anyone else got any great stories like mine... big Ryan