When HBK retired, Chris Jericho cut a promo gloating that his nemesis was now gone. Cue Triple H to come kick his ass and give him Shawn's patented Sweet Chin Music. Granted, even he admitted he can't kick as high as Shawn and it was really more of "Sweet Chest Music", but it's the thought that counts.
Triple H apparently once paid for pizza for an entire crowd of people waiting outside an arena because of technical problems that made the show start at least half an hour late.
Showing up on Smackdown to come out for Edge's retirement sendoff, and bowing to Edge in the middle of the ring before hugging him.
The aftermath of the Hell in a Cell match at Wrestlemania 28: After having been beaten so badly he couldn't get to his feet, Shawn and Taker pick Hunter up and walk him up the ramp. The three of them - at war not five minutes before - hug and stand arm-in-arm on the stage.
After the death of Ric Flair's younger son, Reid, Ric had placed one of his two WWE Hall of Fame rings on Reid's finger at his funeral and gave the other to his elder son, David. When Triple H heard about this, he had a third ring made for Ric that had Reid's name engraved on it.