Sorry but can't help but think of Tony Hancock's 'The Blood Donor.' My dad used to have it on vinyl and I used to laugh out loud pretending I understood all the adult jokes!
Well done excel - my OH was gutted several years ago, when he had to stop giving blood due to having high blood pressure, he had progressed to giving platelets and had given many donations. x
i did do platelet donations for a short while Ann, they classed the sessions as 'double donation'' but then they stopped that mobile wagon, and the only place to continue platelet donations is now too far away for me