Lawnmower was balky. Cleaned the air filter and bolted it back on. Mower would run for 2 minutes and quit. David poked at it and said, Definitely an air/fuel mixture problem. And he fixed it in one stroke by loosening the bolt that held the air filter. When I'd bolted it on I'd made it -- too tight!
In Jan. 2007 I was workin' my 50-year-old abs to the max, and had a beautiful six pack (in my case, a four-pack). Trouble is, one day I stretched and tore a big sheet of muscle -- my rectus abdominis muscle -- in two places -- rip! rip! near the groin. It got inflamed and I saw 6 doctors and had scans, tests, medicines, 4 misdiagnoses (diverticulitis, hernia, spine, psychosomatic), physical therapy, and chronic pain for 11 months until I went crying to a chiropractor, and she broke up the big lumps of scar tissue that were crippling me. I'd made my abdominal muscles -- too tight! (That's why they call it "ripped"!)
Branch loaded with tomatoes breaks off because when I staked it I tied it -- too tight!
I make and sell jewelry for fun and the #1 reason I have to redo necklaces, anklets, and bracelets is because I pull the "tiger tail" jewelry wire -- too tight!
The fishing line snaps because it's too tight! You get indigestion because your waistband is too tight! You get Morton's neuroma foot pain and calluses and corns because your shoes are too tight! I've learned from experience 100 times now -- don't pull anything or anybody too tight!