What would you do!!!

[mimi]

Firstly, take a deep breath. Remind yourself that you have done nothing wrong and keep reminding yourself of it everytime you feel anxious. Continue with your business and advertising. You do not need get a lawyer unless you feel better with that level of reassurance. If the parents were serious in taking action they would be directed to children's aid who would take a report and investigate. That would most likely result in a visit to your home and a chat with you. Have you ever been reported to children's aid before, personally or business wise? If not do not be too concerned as every report to c/a must be investigated and you don't have a history with them.
Has the parent of the other dc child you care for ever witnessed this boys behaviour? Don't say anything to them, but document this childs behaviour issues in your home and any correspondence you have had with the parents. Remember, his teacher has the same issues with him. Just prep yourself mentally for questions that may come.
That being said, this could just be a nasty scare tactic and they will not proceed. It is awful how they are trying to make you feel but don't let this situation dictate your life. You have had a shock this morning and you have been frightened. Now think confidently and rationally and let them bring it on if they want to as you have done nothing wrong. Please keep us posted....this could happen to any of us.