I was taking some donations to a thrift store for my mom today (plus some I had) and I decided to look through her stuff as i was loading it in the cart to take inside. <br /><br />She had a plastic flexible "Beware of the dog - Enter at your own risk" sign which I grabbed out and kept.<br /><br />I am probably not going to have a dog along with me (or else this topic would go in the pets forum) but I think I will use the sign when I am inside of the van. When I'm not, it might cause someone to break into the van to rescue the 'dog'. <br /><br />Being flexible, I can flex it and prop it up on the side window for the rear entrance to the van which is where someone would probably go to try to break in. I may get a second one for the driver's side door.<br /><br />Here is another plastic sign I like:<br /><br />http://www.ebay.co.uk/itm/BEWARE-OF...=UK_Pet_Supplies_Dogs&hash=item20bd15d36b<br /><br />This is much like having a security company sign in your front yard when you don't really have a security system. <br /><br />A thief is going to pass on your vehicle if they think a dog is inside that may bite their arm off.