I learned the hard way. Out TT was parked in our driveway and someone stole our propane tanks and battery. I now secure the tanks and battery with steel cables and large Master locks. I secure the coupler with a padlock and secure the spare tire with a steel cable and large Master lock. However, like everyone has said, If the really want it , they will find a way to get it.
2014 Wildwood 27RKSS 2004 Nissan Titan Pilot Steve
Co-Pilot Marlene Furry Four Leg children: Fancy Lab/Chow, LB Little Bit, Maltese, Rocky, Border Terrier