Wouldn't it be nice to have a couple of really big and capable heavies just hovering nearby and, at the first sign of any imminent interference with your photography, they discreetly move in and take the offender away to discuss things out of earshot and out of sight so that you can just get on with the creative process in peace. Of course if you were working on photographs of celebrities who have their usually unopposed heavies moving photographers away with hands over lenses etc., your own heavies would be even more helpful and you could get on with your work unhindered whilst the celebrity concerned would actually have to develop some social skills of their own. It would do everyone a power of good!