I rode a few time trails a long time ago and was treated very much as an outsider and some who "brought the sport of cycling in to disrepute and obviously didn't take it with the needed level of professionalism" (genuine words spoken to me) by one of the clubs I mention above (but won't name as it was a long time ago).
it put me off riding with clubs for life.
It may have something to do with me rocking up in faded and baggy gear on a somewhat old and outdated bike then thrashing the majority of their riders, but it could also be the lack of giving a Fk about who was who in the local racing scene at the time.