You can draw or point a gun at the same point when you could shoot someone, not before. If there is no threat to you (significant threat, ie severe bodily harm or death) than you can not use your gun. Vandalism doesn't even come close.
The point i'm making is that I shouldn't have to put up with someone coming onto my property and destroying my personal possessions.
This is so very true, you shouldn't have to ... but often you do. The best course is to catch or identify the rats and then press charges including suing for damages.
Frustrating as heck isn't it gaseousclay?