Its interesting you downplay the potential for a physical comfrontation, pbrow. My initial reaction when i saw the video was to think to myself 'if this clown did that in my presence i would have bounced him into the street on his ass in a hurry'. Im not an elder. I havent believed a word of this nonsense in about 5 years. I didnt even want to be at the reject jesus ceremony. But i was there and so was my family, along with a lot of other peoples kids and even elderly people i wouldnt want to see put in harms way. My training tells me when someone acts in an outrageous way, meaning outside the norm for the situation and occasion, they are a danger and need to be delt with as such.
Example: when im at a basketball game or an american football game and people stand up and yell and cheer, this is the norm and nonthreating. Its contextually appropriate. If those same things are yelled and cheered at a religious service its evidance that the person or persons have determined to disregard social norms and limits. At that point it can no longer be assumed they are going to abide by the accepted standards that govern day to day interactions and may resort to more agressive means to get the attention they are seeking. Any implied trust has been lost and you must view them as a threat.
With that as a back drop, i would have most certainly given them something to video they would not have soon forgotten.. And im apostate. It isnt about religion or cults or jesus or any other nonsense you are using to justify juvenile delinquency. Its about simple human decency and respect.