This is one of those things that half-happened: the DUmmy probably had someone come to the house to do something or other, but in their inertness and frustration they had to come up with a scenario in which they could reclaim power and control. In reality the repair guy probably came and went without incident.
Now, let's imagine the repair guy was also a self-hating DUmmy: "Against my better judgment I took a call on the weekend. I was all settled in watching my West Wing tapes while I searched for a place where I could get my ninth COVID booster shot. I had a lentil smoothie in the mixer and all was well in the world. I guess I'm just a sucker, but on the other hand, everyone here is a good Dem so I figured once I fixed whatever was broken we could smoke a joint and maybe the wife would peg the husband while I watched. So I get there and not two minutes into it I notice they have a Confederate flag on the wall and the husband comes in wearing a holster with double revolvers. 'Are you one of them peace faggots?' He asked. Well, I reminded him that TFS stole the election and Elon Musk is a poopface, and I marched straight out of there."