These lizards seem to have a good sense of smell, perhaps some pungently scented repellent or some type of pheromones would ward off an attack?
but if i had a weapon here it is
http://www.smith-wesson.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&catalogId=11101&langId=-1&productId=49906&tabselected=tech&isFirearm=Y&parent_category_rn=15707
but if i had a weapon here it is
http://www.smith-wesson.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&catalogId=11101&langId=-1&productId=49906&tabselected=tech&isFirearm=Y&parent_category_rn=15707