I donated blood.
I have done this before and they always had trouble getting my blood out. Since then I have been diagnosed with a blood clotting disorder (it clots too easily) and so I have stopped donating blood. But good on you for doing it.
Now I'm curious! I have a slightly higher-than-normal platelet count, and so does my brother, but he donates blood easily. Do you remember the name of the
condition you have? Is it thrombocytosis? And do you take any precautions to reduce the risks from the clotting, or do you not need to?
By the way, I'm a nosy little geek about medical matters, so if it's none of my business, I won't be offended if you prefer not to answer.