http://ask.metafilter.com/111950/Is-my-husband-trying-to-kill-me

"About a month ago I could have potentially died from carbon monoxide poising. My husband usually leaves for work before I do. We live in a small single level home and the master bedroom is very close to the attached garage. This particular morning he pulled his car out of the garage to warm it up. As he was getting ready to leave he grabbed some cash from my purse as he went out the front door and must have hit the autostart on my keychain which started my car. The door to the garage from the house was open (which was not uncommon since if it didn't latch all the way it opens). About a half hour after he left I had just gotten out of the shower and thought I smelled exhaust. I went to the garage door and to my horror saw the car running. I immediately called my husband and he told me to open all the windows, go sit right at one of the
windows and he'd be right home (he was very comforting and always seems to handle problems so well). He came home and we figured out what must have happened. I felt ok so we didn't go to the hospital."