<p>I donated blood once at school and ended up with a huge bruise on my arm that was like 6 inches in diameter. On the same day, one of my classmates threw up and fainted while they were taking his blood...</p>
<p>I donated blood once at school and ended up with a huge bruise on my arm that was like 6 inches in diameter. On the same day, one of my classmates threw up and fainted while they were taking his blood...</p>