Depends upon what my 3 dogs do and how they react. If they bark, I'm up with gun in hand. If they growl... I'm up with gun in hand, flashlight and extra mags (if they growl they are in "serious" mode & it's a threat). Then, I tell them to 'show me'.... and they take me to the source of the bang and thru various commands, will clear an area or a room quite well.
If they head me to the back door, which has occurred... and they've never been wrong either..... then one remains inside, one on leash and one free wheels it... she'll do searches on command & go right to them .... and I take over if need be at any point.
It seems whoever was messing around with my shed, my backdoor and my car soon decided they didn't like me showing up with gun in hand and 2 dogs that could easily locate them. My one, caught scent and began tracking them a few times, and I stopped her at a certain point. But, I'm sure if I had let her go she would have followed them all of the way home or to a car. They've seemed to have moved to someone else's house or another part of town.
When I go to bed, they go in protection mode, they won't even let the cat enter the room if I'm in bed, let alone any person (except my grandkids).