I think they have misread the paper slightly: Rituals should be systematic, repetitive movements natural to the context and product. Not random gestures. In t

I think they have misread the paper slightly: Rituals should be systematic, repetitive movements natural to the context and product. Not random gestures. In the paper, the rituals associated with the carrots were '...behaviors such as using their knuckles to rap on the desk, taking deep breaths, and closing their eyes for a moment...'. n.b. none of those were natural to the context and 'product'. The 'not random gestures' part is actually referring to where participants in the study performed similar gestures, but did different ones for each carrot that they tasted. So I think they seem to be drawing the wrong conclusions from this study.