What disadvantages of self insurance?

Insurance in general is the protection of financial loss. If you are self-insured you might be sued for more than the actual loss. You may be taken to civil court for more than physical damages. If you do go to court the cost of you lawyer is a problem. Insurance companies have figured this into the premiums and they have lawyers that already are familiar with the problems of insurance suits.
I am not a lawyer but just a consumer. So, please continue your search.