Re: ken shamrock shoots on Undertaker
It was planned. The storyline in the Vince/Ministry angle is that Taker started to believe in his own gimmick. Vince said it in a promo before WM15, "I think you started to believe in the gimmick, you started to believe that you're really "The Undertaker", Mark Calaway", something like that. So it wasn't the first time. That was a Russo style reality-based work/shoot angle.
once again you got it right