#4 Shawn Michaels yells at Vader (WWE SummerSlam 1996)
This incident was recalled by Jim Cornette, who was once the manager of Vader in WWE. Back in the mid-90s, Vader got into a feud with WWE Hall of Famer Shawn Michaels. Michaels was infamous for being incredibly unprofessional and a major backstage politician at the time. The two WWE Superstars collided at SummerSlam 1996, with Michaels' WWE title on the line. During the match, The Heartbreak Kid was about to hit an Elbow Drop on Vader.
Vader was supposed to move, as per the script. When he didn't, Michaels got angry and yelled at him, hitting him on the head at the same time. Michaels eventually defeated Vader to retain his WWE Championship, but the match became infamous for that controversial bit where he screamed at Vader. This was just one of a long list of incidents from that time that saw Michaels acting unprofessionally during matches and in backstage areas. Michaels lost to Stone Cold Steve Austin at WrestleMania 14 two years later and took a 4-year hiatus from in-ring action due to an injury.