wtf goes through my FIL's mind sometimes?! He thought he heard the front door open and close and…

wtf goes through my FIL's mind sometimes?! He thought he heard the front door open and close and what does he do? He texts my husband to see if he came in or out. He doesn't go check it out first... He sent like 3 texts before going to check it out. Who the fuck waits that long to allow themselves to be robbed or murdered?! One time he had a gun ready when I made a quick trip over here (when we werent living here) at 5 in the evening but he sits and waits at 7:45 am.