Perhaps you should just print off this thread and forward it to the CAA!
Note that no-one has tried to defend blatantly stupid or criminally irresponsible low-flying!!
If a formal complaint has been lodged, then I suspect that a decision would be made regarding whether the case merits investigation given the level of 'evidence' presented by the complainant. Fair enough - but I doubt whether any legitimate investigator would really call you by telephone.