Today was just marvelous. Locked up my car with keys inside and with engine on.

I was driving back home from work. I drove to a parking near home, which is really long, narrow and impossible to turn around. So I decided to get out of a car, for like, 30 secs and go check, if there were any unoccupied parking places. Parking brake; I stepped out of the car and closed the door. Click.
Brilliant.
I knew, that I needed to change contacts in the driver door, that sometimes were triggering central car lock, but I didn't expecting such outcome.
So, I am outside.
Engine is on.
Parking brake.
My backpack and phone were inside.
Luckily, one neighbor wanted to drive somewhere, so I explained, why he can't donit, why my car is here and asked to watch my car for 5 mins while I will run home.
So I ran home in home to find a second pair of keys.
After some time, LUCKILY, I found them, went back and unlocked my car...

Moral: don't delay things.. Small fixes to prolong life of some object will eventually fail in very, very uncomfortable manner.

I'm glad I found spare keys and there were no need to break my own car window... And I DO care about my car and do lot of things by myself.