I got a contract yesterday,it was so poor because it had several mistakes and it seemed have some  traps.So my work yesterday was just amending the contract !!!After amending it, I send it to the other party,the salesman could not understand why I amended and  requested a lot.I showed the mistakes in the contract and explained why in several times.Finally he agreed to sign the contract which I amended,but my colleague told me that the salesman said he was crashed because my request.