I just finished a jigsaw puzzle that would have been tough enough on its own, but the last person who owned it lost about 36 pieces before they reboxed it and donated to the thrift store. I knew way back when that it was missing at least a few edge pieces, but when I finished with what I had, there are big gaps. It was a cruel act when that last person passed along this flawed puzzle. I just scraped it off of the table into the trash can. (That was 550 pieces minus 36; the next one is a killer with 750 pieces on an xmas theme. Let's see if I can finish it by the new year!)

This is just generalized whining about BS behavior.