Will you let us know how you get on?
Plus points:
you get to do something great for others, possibly even a wee baby
you get to feel all proud of yourself
you can get a heart-shaped sticker saying, 'I gave blood today' or 'I saved a life' or something
you get to eat biscuits, guilt-free. In fact, a medical person is telling you that you should
AND, you know deep-down that you really want to, or you wouldn't have asked
Go on