Ha!
True story: When I first decided I seriously wanted to sing in a band (10th grade), I begged my parents for a microphone for Christmas. I wanted a Shure SM58 even though at the time I didn't know the model number. They got me something very similar to this Radio Shack one - (a no name I later found out it cost $24), except it had a Polarity Reverse feature, where you could connect the XLR cable right side up or upside down to reverse the polarity. Absolutely no idea why that would be a desired feature on a vocal mic, but it was what it was.
So, I get this mic and I'm all excited to use it, but I wasn't in a band, had no PA and didn't know anyone in a band with a PA. So, I hung onto this POS mic for about 2 years til I joined my first real band. I'd been dying to use this mic for what felt like ever to my teenage mind, I couldn't wait to finally plug it in and let 'er rip.
Get to practice, and they had a decent AKG mic there (don't recall the model, but it was maybe one step down from an SM58). They suggested I use it, but I wasn't having it - I wanted to use this crapola mic I'd gotten for Christmas.
So, we plug the cheap mic in and try one song and it sounds like utter garbage - like singing through an old Ma Bell telephone call if not worse. I couldn't figure out why, cause #inexperienced and the guy running the sound board couldn't either. Then I remembered the "super cool feature" where you could reverse the polarity. I unplug the mic, turn the XLR connector over, plug it back in and we go again. It sounded even worse.

After a few minutes of all of us examining this mic, I grabbed the AKG and set the Christmas mic down. Ended up using that AKG for about a year til I got my SM58 (which I still have to this day - and it still works just like it did when I bought it in the late 80s). Last I saw, that Christmas mic was in the corner of our practice room under a pile of empty beer cans... no idea what ever became of it.