I'm wondering if human interference improves the situation other than to get the horse out of the stall in case it succumbs to a twisted gut. It also eliminates the possiblilty of the horse becoming cast. Horses have dealt with both types of colic for millenia, most make it, some don't. Research on colic revealed that when the horse rolls, it is rearranging it's gut. It is most difficult to stand by and do nothing but perhaps the best course of action is inaction.