Guard Dog Burglar Alarm
Turn your doorbell into a vicious guard dog burglar alarm! If you want to avoid the hassle of rearing a dog but scared of burglars coming to your house, then learn how to build this guard dog burglar alarm for free! Another cool invention with simple construction that can be built with household objects.
Source : Instructable
I love those large German Shepherd dogs and also those tiny Chihuahua:–
i really love dogs as pets because they are so adorable and very loyal pets too-:.