Villa is an idiot who talks right over his guests. Norm was THE MAN.
I always try to leave no sign of my remodel work but I do run into blocks in the middle of the bay from time to time.
4" hole saw makes a clean hole you can screw back on when your done.
In my own house I've had good results using 2 coats of joint compound and follow up with ultralight spackle. Palm sander makes a messy but fast job out of it. Sand until a depression it made so the patch doesn't stand proud (a term I learned watching Norm)of the wall.
When all is perfectly smooth use the canned texture. When dry give it a light knock down sanding. Paint.
In my house you have to look real close to see it, but different texture styles might be harder to blend.
On taping wire nuts I know of only one incident where it would of helped. My old partner was gluing a leveling ring into a PVC floor box when the wire slipped from his hand. Ground wire went into the wire nut on the hot wire and sparked. PVC cement dauber caught fire and a very surprised electrician went running out the front door across the brand new carpet and stomped the flaming dauber out on the brand new concrete walkway. I blew beer out my nose when I heard the story.
