I know I've been asking a lot of questions lately but here's another one. Which impromptu pk trick is more practical: Energy Bill or Shudder? I've read good reviews on shudder but none on Energy Bill. Dollar bills are more common than cans but they are both readily available. Energy bill seems to be angle proof so better angles than the impromptu version of shudder. Although, shudders gimmicked version is able o be surrounded I believe but I don't really intend to use a gimmick unless it is really simple and easy to clean up/ carry. So which one would you recommend for an impromptu pk effect?