![The Simpsons Season 12 Episode 9 The Simpsons Season 12 Episode 9](https://pics.soap2day.day/t/p/w185/vHqeLzYl3dEAutojCO26g0LIkom.jpg)
The Simpsons Season 12 Episode 9 123movies
While working as a human guinea pig (to pay off the family’s lost savings after making a bad investment), Homer discovers the root cause of his subnormal intelligence: a crayon that was lodged in his brain ever since he was a boy. He decides to have it removed to increase his IQ, but discovers that being smart does not necessarily equal being happy.
![The Simpsons Season 12 Episode 9](https://pics.soap2day.day/t/p/w300/5uTFgcEU2TkH4rTdgWE3tusXZs6.jpg)