自願無償捐血
之前有人捐活肝，有某NGO 捐十萬俾佢，俾人鬧到媽媽聲 (e.g. see the comments in https://www.facebook.com/tang.earthquake/posts/1344050939003853) 而家有人破壞香港恆之以久嘅無償捐血制，危害血液安全，某網媒竟然大肆宣揚，話係「員工福利」，出埋公司全名幫人賣廣告，「高層嘅回應相當幽默！」將一件相當危險嘅事加以美化
Ignorance can kill.
World Health Organization (2010). Towards 100% voluntary blood donation: A global framework for action. Ch. 2 (excerpt). ISBN: 978 92 4 159969 6. Available: http://www.who.int/bloodsafety/publications/9789241599696_eng.pdf
A voluntary non-remunerated blood donor gives blood, plasma or cellular components of his or her own free will and receives no payment, either in the form of cash or in kind which could be considered a substitute for money. This would include time off work other than that reasonably needed for the donation and travel. Small tokens, refreshments and reimbursements of direct travel costs are compatible with voluntary, non-remunerated donation.
[…]
Voluntary blood donors, particularly regular donors, are the first line of defence in preventing the transmission of HIV, hepatitis viruses and other bloodborne infections through the route of transfusion. A number of studies have reported significantly lower prevalence of transfusion-transmissible infection markers among voluntary donors compared with other types of donors, with the lowest rates among regular donors.
[…]
People who accept payment for their blood are primarily motivated by the prospect of monetary gain rather than a desire to help save lives. The need to protect their income from blood “donation” compromises issues of honesty in the donor interview and they are highly unlikely to reveal reasons why they may be unsuitable to donate blood.
(Emphasis mine)