When Sin Cara attacked Sheamus on RAW this past Monday, a WWE crew member pushed a mini-trampoline from under the ring as Cara ran towards it. There was concern backstage that the trick could go wrong if the trampoline wasn’t in the right position, which it wasn’t. The trampoline was positioned so close to the ring that Cara almost didn’t clear the top rope when he went to attack Sheamus.
On a related note, Cara was originally planned to leap from the top rope onto Sheamus on the floor with a tornado twist in mid-air. He called an audible during the angle and ended up doing the high crossbody. The original finish to the angle would have looked better on TV but the crossbody came off nice.