Re: I can believe it!
On the form for giving blood, you have to answer various health questions. Are you currently ill Y/N, have you ever had a blood transfusion Y/N etc. The correct answer to all of them was no - which is obviously too tempting to just tick all the NOs on the list in a nice easy line and so avoid any complex reading.
So they bunged a new question in the middle of the list, where the answer that didn't send you to be interviewed in private by the doctor was YES. I'm not sure if this was an accident, or someone being clever.