This is being discussed on another "topic", but what is the role of the assistant ref.? I thought they were there to refer to if the head ref. was unsure. Kind of a stand by, there only to make calls if asked to.
If the pulling of the head gear was so blantently obvious then why didn't the head ref. call it. Also, it wasn't just the PV crowd making all the noise over that call, so many of us missed it!