Blood Donation Campaign

It has blood donation campaign again in our campus.  I purposely sleep more than 5 hours the day before, went to  have heavy breakfast, but unfortunately I still not able to donate blood. =(

The lucky guy that manage to donate his blood to help the others, he is lucky isn't he.  I don't understand why he can donate blood as he didn't take heavy breakfast (he took 2 small mini size chocolate only) while I took heavy breakfast, yet I still couldn't donate blood... So unfair!!! =(

The nurse thought that both of them are brother and sister.  Who do you think is the elder brother or elder sister. XD

p/s: why that stupid lady so annoying?