No, in fact, if the Rx had a statistician they would come up with the stat that only about 13% of all cries of foul are even worth looking at. 87% of the time, its a clear cut scenario of "how can I extort money" from this book.
Having said that, of course I try to accomodate someone if they have any kind of reason to cry foul but if there is no case, there is no soup for you.