Computers are horrible

 When is the last time leaving your keys in the car caused your house to suddenly slide 10 foot southwest?

When is the last time you flipped a light switch, and suddenly your pool disappeared?

Have you ever had French doors appear in your dining room because of a "Windows Update" on Wednesday morning?

Have you ever had to wait for half an hour for your house to boot later on that same Wednesday?

When is the last time you closed a door, and were killed by a hailstorm of bowling balls?

At least with a light switch, you know it's very unlikely to cause structural issues, or plumbing issues, or drain your bank account.  Computers are singularly horrible in the ways things can fail.