LOL!! I occasionally use that as well. In one of my bottom draws of a tool box, I have galvanized fence pipes of various lengths and diameters. In my O2 sensor removal, I didn't have one with a big enough diameter opening to fit over the open end side of a 7/8" wrench. I had to get a new wrench or cut the open end side off.

 

I really like this guys YouTube video of How to replace O2 sensors. This is a lot closer to my usual experiences when doing repairs. Starting around 4:34 of video "Dawg gone it....that darn things stuck....I'm gonna have to get the BFH or some other tool to get that darn thing out."

https://www.youtube.com/watch?v=oDDB9dgL0Ss

 

Haha...it's Murphy's Law for sure.

 

I've learned when most people say it should take 30-60 min to do a particular job, for me that typically means 30-60 minutes just to put away and clean up all the tools that I had to pull out and use to try and do the job.