Here's what I said (& the comments are there again!):
"For us mere mortals who have tracked the 20 years worth of 'academic helmet ping-pong,' it seems a little bit rich when one side claims that the other is biased and their not.
As far as I can make out from a literature review that I have conducted, the only thing bicycle helmets protect you from are fines."
...notwithstanding the appalling grammatical error I made ('their not', as opposed to they're not - ouch, mea culpa) I am still smarting from his intimidating invective and his palpable anger towards me - but I refuse to be abused into silence.
There goes the 'rosy glow' I had about academics in their tax-payer funded ivory towers.