Food stamps

I'm at work right now playing around with some data analysis software. I realised I needed some paperwork from an old study, so I started rummaging through my filing cabinet. I found a bunch of Coles-Myer gift cards in there! About $50 worth. These vouchers are left over "rewards" for participants from said old study that I had forgotten all about. They are are like food stamps issued in response to a recent phenomenon that the university likes to call You-Took-Too-Long-To-Finish-Your-PhD-So-Your-Scholarship-Ran-Out.