Yes it is, but we really do not want intrusive measures. However, on guest registration and in other areas, we do rely on members being honest. Perhaps we should remind members that dishonesty of any sort is customarily treated quite severely by clubs. We have detected instances of this in the recent past and taken action. The potential consequences include expulsion from the club and I suspect the members in question may not have stopped to think about the potential consequences for themselves of such dishonesty. Please discourage it when you see it, and we can avoid more intrusive actions.