I use one of my Remington 1187's have 2 german shepherds. Great guard dogs.
*note* Previous posters that cry about orings making shotgun useless obviously never have shot a Remington 1100/1187. They will cycle just fine with the oring gone! Granted you will end up with burnt powder all down your barrel and handguard but it WILL cycle just fine!
USE TRI-Flow to lube the shotgun and protect barrel against corrosion...it WILL NOT freeze like rem oil, WD40, etc!