A happy resolution to this, my colleague did get my point and so this was in the latest email. I replied to say it was great and thank you. :-)
Cycle Safety: Following on from an article in the last edition, regarding safety for cyclists, a
request has been made for me to draw attention also to
http://www.bikeradar.com/news/article/drivers-at-fault-in-majority-of-cycling-accidents-28489/
Very clearly road safety is a matter for all road users, not only cyclists (and, to that end, just in case
road users other than cyclists missed seeing the video last time around, here it is again -
(link removed as I don't want to embed the video again) and I very much
recommend that it be viewed by drivers of motor vehicles as well as cyclists).