is a one time only incident one which would qualify as a course of conduct composed of a series of acts as set forth in code of civil procedures section 527.6
2 Answers from Attorneys
This code section provides that there is not time frame required for course of action to occur. There are some circumstances under which what appears to be a single act, could qualify as a course of conduct. From the facts that you have provided it is not possible to provide a more complete response.
A cross-complaint is treated as a separate complaint. They can do it. Turn it over to your insurance agent. It might be covered by your homeowners policy. I have defended hundreds of such suits and the carrier just might pick up the defense. I practice in California and Indiana.