cash for treatment.... no way!!!!

ever get turned away from medical treatment,after offering to pay cash??? i actually did,once... i went to a well-known chain of medical offices,around Sacramento,with an injured foot,i believe,and after showing them my insurance,which they refused out of hand,i regrouped... that did not surprise me,but when i offered to pay cash,they gave me a very lame excuse that when they rejected my insurance,they could not accept the almighty US dollar,for payment,and folks,i had moolah to pay for most any treatment that they wanted to give me... the argument that we had was memorable,because i had been there years before,with the exact same insurance,and was accepted,but folks,i understood about the insurance rejection,no doubt,but i just could not believe that they simply refused cash on the barrelhead... they even threatened to call the police on me for offering to pay cash for the treatment... well,folks,i,many times,told them loudly,where to stick it,in the stupidest argument that i have ever had with anyone... some companies just do not want to make cash...