Keelboots is claiming magic knowledge and therefore politely declining to give you a blunt explanation for your 'proof' of stooge usage. I don't have that professional code of honour, just a casual viewer, so I'll give you my blindingly obvious eplanation. Instead of going to the bother, cost and risk of planting some young laRAB in the audience, how about having a script....you know - open a bit of paper,ignore what's on it, trot out the planned line, have the audience burst out laughing at the rude word. Or maybe your stooge explanation is easier? Try thinking before crying stooge.