I have this same sign that I bought as a joke, but earlier this week my tortoise took a small chunk out of my hand. Now I think I need to put up the sign out of necessity to give people fair warning about my 2 yr old Hermann’s ?I have this sign and one day I was out in the yard and the FEDEX driver asked me if it was safe to enter the yard. I almost cr@pped myself laughing. My wife got as a joke! I have it the front gate! On second thought I haven't see any Jehovah's Witnesses since I put it up!