I've gone through several guns over the years that were'nt good enough to keep and wound up selling/trading them all off.
The worst one was probably the first handgun I owned, a Jennings/Bryco in 9mm. The triggerguard was purposely designed large enough for 2 fingers on the trigger (with a 2 handed grip) and it seemed like it needed room for a couple more. Probably had a 20 lb. trigger pull. Looking back on it, I learned a lot as a new shooter. After getting used to that horrible trigger pull, every decent gun I've owned since has made me look pretty good.