Saw a 2 dollar anti-tip strap at a yard sale and bought it just to prove a point
Laughed at the idea of strapping my tower to the underside of my desk, figured it was overkill for a 40 pound case until my buddy's cat yanked a DisplayPort cable and sent his PC face down on the tile last week. The strap kit was 2 bucks and took 10 minutes to install with the included screws, and now the tower does not budge even when I kick the desk. Has anyone else here actually had a tip over, or am I just paranoid now?
Strapped down feels like overkill for a normal setup, but the cat cable yank is real. Kids and pets have pulled way more cables than gravity ever has. Save the strap money for a better desk mat and just run cables where they can't get snagged.