Phlebotomy is a Sore Subject Today

Was it my fault, or was it just the stick
That caused my blood donation so to fail,
I wonder, though I know I should not kick
Myself; I know misfortune can prevail.
I woke today and knew I'd do some good,
Would feel today that warm and special pride.
I know deep down it counts some that I would
Have done so, yes, it matters that I tried.
The needle, it refused to stay in place.
My flow of blood is famed for being strong...
Today I left the van and felt disgrace.
No matter what the reason there's one less
Pint to be had, and it's a rotten mess.