SQUEEZING THE RUBBER BALL

Very shortly I’ll be off,
To give some blood again,
They’ll ask some questions,
Do some tests,
Stick a needle in my vein,
Then pump and pump,
And pump and pump,
The crimson red shall flow,
I relax and squeeze a rubber ball,
Happy to let it go,
I’ll get a sandwich, juice and gift,
And then be on my way,
In about three months’ time,
I’ll come back another day,
And now they do a new thing,
That had me quite amused,
They send donors out an sms,
When their blood’s been used!