Unpopular opinion: Hand-tightening critical bolts is a recipe for disaster

I was doing a head gasket replacement on an older engine and got lazy with the manifold bolts. Thought a good crank with a ratchet was enough, no torque wrench. Sure enough, a week later the customer reported an exhaust leak and lost power. Had to pull everything apart again, felt like a total fool, lmao. Now I torque every single bolt to spec, even if it seems overkill. That one job cost me half a day of free labor to fix. Watching other mechanics skip this step makes my skin crawl. Save yourself the headache and just grab the torque wrench every time.