The typical ADT installer wraps every alarm wire around a piece of romex at least six times and only uses holes through framing that already have romex in them (NEC be damned and cheaper than staples I guess). One of my personal favorite ADT gems at a house a relative bought was a siren installed inside the cold air return. In true ADT fashion, they used screws that were too long and protruded about 1/2" through the drywall into the room opposite the vent. This ADT installer couldn't even handle properly aligning some of the wireless sensors they installed (resulting in false alarms). How hard is it to line up two arrows?