12. Kyle Farnsworth (2003)
Farnsworth made headlines after he kicked an electric fan in 2003. It was a stupid move because the fan put him on the disabled list for over two weeks. He had a bad game against the Houston Astros. On his way back to the Cubs’ clubhouse, Farnsworth threw his gloves away into the crowd. But he felt an urge to vent his fury in a more visceral way. It’s too bad he chose to kick a metal fan.

“You know everybody has done something similar at some time in their career,” Manager Dusty Baker said (via ESPN). “There’s a valuable lesson here, an expensive one.” It was also an embarrassing scenario for Farnsworth because Chicago fans already resented him. They had booed him because of his poor performances in previous games. Unfortunately, he made life worse for himself.