• On August 23, 1989, Davidson ejected
Montreal Expos mascot
Youppi! from a game against the
Los Angeles Dodgers following repeated complaints from Dodgers manager
Tommy Lasorda. • On October 20, 1992, Davidson missed
Kelly Gruber's tag on
Deion Sanders during Game 3 of the
1992 World Series, costing the
Toronto Blue Jays a World Series
Triple Play. • On September 21, 1998, Davidson controversially ruled that a ball hit by St. Louis Cardinals slugger
Mark McGwire in
Milwaukee County Stadium was a
ground rule double instead of a home run. Davidson said that a fan reached over the outfield fence to catch the ball, interfering with a ball in play. The home run would have been the 66th of the season for McGwire, who had broken
Roger Maris's single-season home run record earlier that month. McGwire and Cardinals president
Bill DeWitt said after watching replays that they thought it should have been ruled a home run, and DeWitt attempted to appeal the ruling to Major League Baseball. • On May 16, 2009, Davidson ejected Anaheim Angels pitcher John Lackey after just two pitches after the latter threw behind Texas Rangers second baseman Ian Kinsler, then hit him with the next pitch. It was Lackey's first start of the season after spending the first month on the disabled list. This came after Kinsler hit two home runs against the Angels the previous night. • On August 5, 2010,
Gaby Sánchez of the
Florida Marlins hit a hard ground ball down the third base line which was ruled foul by Davidson. However, subsequent replays showed that the ball landed just in fair territory, bounced over the base and landed again in fair territory, sparking outrage from the Marlins dugout. The
Philadelphia Phillies went on to win the game in ten innings by a score of 5–4. Davidson later stated, "In my opinion, where it goes over the bag, you can't tell. ... I'm very confident I got it right. What the ball did when it went past me is irrelevant." • On September 7, 2010, Davidson and fellow umpire
Tim Timmons ejected four people during a game between the
St. Louis Cardinals and the
Milwaukee Brewers. In the bottom of the second, Timmons ejected Brewers manager
Ken Macha after Timmons ruled interference on
Craig Counsell. In the bottom of the third inning, Davidson ejected Cardinals pitching coach
Dave Duncan for arguing balls and strikes from the dugout. Later, after the bottom of the fifth inning, Davidson ejected Brewers batter
Chris Dickerson after Dickerson threw his helmet and bat to the ground after taking a called third strike for the third out. The final ejection occurred during the bottom of the seventh inning when Davidson ejected a fan for heckling Cardinals catcher
Yadier Molina. ==Personal life==