I have ruined my wife and daughter. I spent so much time stressing that they report any and all oddities that may occur so that I can fix them before they become major problems. My daughter told me her brakes were grinding while she was 2 hours away at college, I knew the brakes had plenty of material so was perplexed - told her to drive it home and assured her that she would be fine. When she returned a few weeks ago, I took the Vue out and it turns out that she had an umbrella under the seat that was rubbing against something metal. It didn't sound like the brakes at all and occured more when turning than braking. Told her I fixed the brakes and she was happy.
Wife's Flex had a bad coil and was missing really bad, I was at work. I told her to drive it home, she said it wasn't safe (she was 2 miles from home). I attempted to debate her and assure her that the car would not die, but she was terrified to drive it. Luckily she was able to park it somewhere that it did not get towed. Went up there that night and drove it home no problem, replaced the coil and it runs perfect now.
My point is that I have scared the ladies in my life. I maintain these cars really well and would probably notice any symptoms before they became catastrophic.