Hi ,
Good day! My name is Vishal . I am an Independent Advisor of Microsoft and a Windows expert . I am glad to be able to provide assistance for you today.
Here are some suggestion or tips for you to get enhance security in your document:
1- Your documents do not store on home network when you print from your Laptop.
2- Your dad does not have access to the content of documents which are printed on network. Print jobs are encrypted over the network and they should not be accessible to other network users after printing
3- Always use encryption and password for your documents.
I hope it helps. Please let me know if you need any further assistance.
Regards,
Vishal