Recently I broke off an O2 sensor in the exhaust manifold of my 2006 Mazda 3 (apparently no antiseize had been used prior, never seen one so welded in). After I considered the age of the catalytic converter and the fact that it would require a lot of drilling and tapping to get it out, and would have to be done off the car anyway, I decided that I may as well replace it. Got a good price at Parts geek with a 30 day return and shipping was $19.95, so I figured I was risking 20 bucks x2 for shipping if it didn't work out. So, part arrives, it's substandard and missing a mount that helps support the cat, and since that crappy thing is not going on the car I again change course and proceed with drilling and taping that sucker out of the old one. I eventually win

So, I get my return auth for the part and head out to the shipping store to return it. Cost? $115.00 UPS. Whaaaaaaaat. Why did I not see this coming? The part itself only cost $261. It's almost half of that just to return it. Doh! Off to the post office, and they end up being a bit more reasonable at $74, but still. I'm pissed, but seriously, who can I blame?
Me

I love wasting money.

