Thanks, Clod - yeah, she is getting there. That is quite a funny mental image.
@ glatt - I went to the NHS Give Blood page - started going down the criteria lists and it says dont give blood if you have ever injected, or been injected with drugs even if it was a long time ago, and even if it was only once
....oops. It was really long time ago - like decades ago ... but it sounds like that bars me from joining the blood drive