Thread: WTH was I thinking?

In light of some recent threads I thought it would lighten up the mood around here to start a thread where we could share stories of how we ourselves almost became potential recipients of a "Darwin Award." I have just one request that you end your post with "WTH was I thinking?"

My submission:

A few years ago SWMBO and I sold our 2001 Ford Escape to my in-laws so they would have a vehicle to drive when they're in town visiting us. I handle all the routine maintenance on all of our cars, but in times where I am too busy, I'll go to a mechanic. The Escape had a curious problem of occasionally not wanting to start, so I did the usual, check the battery, starter, ignition, fuel pressure regulator fuse, fuel filter to no avail. I go to the dealer, bend over, and explain the problem to them. I think it's a bad fuel pump. They run their diagnostics and say the fuel pump is fine, but I need a new throttle body. $$$ later the problem is still occurring. I told my father-in-law I'll get the issue resolved as I was convinced it was the fuel pump. After consulting the manual, I decide replacing the fuel pump looks very easy. Bought one from Checker Auto and gave it to my FIL as a Christmas present.

Two days later on a cold and rainy day, FIL and I decide change the fuel pump. The wind chill was bitter that morning so we decided to work on the Escape in the garage and closed the door. The job took about 45 minutes and the smell of gasoline filled the air. As we finished the job, SWMBO came into the garage, gagged on the fumes and opened the garage door. She looks at us and says, "You know you guys are changing the fuel pump right next to the gas furnace and gas water heater right?" FIL and I just gave each other a blank stare. WTH was I thinking?