Thanks for your prompt reply @Ch.N. That really doesn't get me off the hook. These are very simple and should I say it - logical things a script like Oxwall should have built in. Speaking of privacy, it's so essential to be careful these days, yet people still like to show certain things to everyone. Even if things are marked private you must be aware:
A lady won $900 on the Melbourne Cup on Tuesday. She was so excited, she took a selfie of herself holding the winning tote ticket and posted it as a friends only photo on Facebook. A "friend" saw the photo, enlarged it on their phone and held the clearly visible barcode against a barcode reader at the payout machine. They took the $900 and when the lady arrived at the machine 15 minutes later to collect her winnings, he ticket was rejected.
True story:
http://www.news.com.au/...jsiw2w-1227596764520