I have a friend to open a restaurant, a guest accidentally eat bad stomach, my friend is willing to compensate for the medical expenses, but this customer demanded sky-high 20,000 yuan, how to do?

However, there must be relevant evidence, your friend can invite the local health authorities to solve the entry, to the restaurant for testing, to obtain first-hand information on whether the need for compensation, if it is indeed your friend's reasons, your friend can continue to negotiate with the guest, must be and gas, if the guest must not, can be resolved through the court proceedings.