What is the worst gun you have ever owned?

[MikeJackmin]

A Daisy .22 rifle (rimfire, not an air rifle). Made of pot metal. So poorly constructed I refused to fix it or sell it, I just pounded it to scrap as a service to humanity.

 

[Chrontius]

Kel-Tec p-3at. 31 rounds fired, 5 failed to eject.

Took it home, cleaned it up, noticed that there's a little metal part missing, according to the exploded diagram.

Seems that my FFL had dismantled it for inspection and left out that little piece -- I had been shooting it without an ejector (which was fortunately under the manual). Still need to see how it behaves when it's not broken, though I know at least two of those FTEs were me limp-wristing.