Who Couldn't Shawn Michaels Mention at the Hall of Fame?

It was speculated that Shawn Michaels was referring to Ric Flair when he said he couldn't mention someone's name during his WWE Hall of Fame induction speech. Shawn revealed on twitter that he was talking about Vince McMahon:

"There seems 2b confusion on the "who" I couldn't mention during my speech. It was Vince. He doesn't want focus on him. U wanna c the real Vince watch the HOF ring presentation on the WWE Diary w/me. The rest is gimmick, don't believe what u read. It sounds like a schill but its fact. But of course that's jus 1 guys opinion that actually knows him...for 20+ yrs. Whadda I know."

source: allwrestling.com