#2 Paige mentions Charlotte's deceased brother
At Hell in a Cell 2015, Charlotte retained her Divas title against Nikki Bella, and got into a rivalry with Paige. Charlotte successfully defended her title against Paige at Survivor Series, an episode of Monday Night RAW, and the TLC PPV.
The contract signing for their Survivor Series match saw Paige mentioning Charlotte's brother Reid Flair. She talked about how Charlotte's brother "not having much fight in him", resulting in Charlotte launching a beatdown on Paige.
Also read: A 14-years old Charlotte Flair makes WCW appearance
#1 Randy Orton takes it too far
As WrestleMania 22 drew closer, Rey Mysterio was all set to compete in the World title match at The Show of Shows, after winning the Royal Rumble Match. Randy Orton had other plans in mind though.
He confronted Mysterio on an episode of SmackDown and asked for a match with the WrestleMania opportunity on the line. As Mysterio looked up, addressing his deceased friend, Orton told him that Eddie's not in Heaven, but in Hell.
The fans, shocked at what Orton had just said, showered him with boos, as an irate Rey hit a low blow on him. Mysterio went on to win the World title at WrestleMania 22 by pinning Randy Orton in a Triple Threat Match, dedicating his victory to Eddie Guerrero.