My dad once got a pair of underwear that had a twist in the middle of them. In other words, the fabric between the legs had been twisted before it was sewn together. Apparently, some guy on the assembly line was having a bad day and decided to share it with some innocent schmo. Enter my dad.
To my dad's credit, he didn't just throw them away. He decided to give them a chance. After he spent the entire day, pulling a wedge out of his...well, you know, he decided to throw them out. Not being one to throw skid-marked underwear in the trash, he decided to wash them first. Unfortunately, he neglected to inform my stepmother of the plan, and she washed them and put them back in his drawer. After the second day of pulling a wedge out of his...well, you know, he asked my stepmother to take them apart, untwist them, and sew them back together. He figured that was safer than risking another day with a twist!