Thanks for the response, I&#x27;ve just thought of that single example and couldn&#x27;t digest it, but it is just me.<p>It&#x27;s like [guid](<a href="http:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;2977593&#x2F;is-it-safe-to-assume-a-guid-will-always-be-unique" rel="nofollow">http:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;2977593&#x2F;is-it-safe-to-ass...</a>) as far as I can understand and even bigger that we shouldn&#x27;t worry.