Like a hyperextended elbow

My hyperextended elbows have grown up with me
Like a hat full of doves I have hidden and will bust out
With some cool magic trick to the shock and gasps of an audience.
Some people cannot stand to look at it as though I have
Flashed them something obscene.

My hyperextended elbows make people uncomfortable
Much the same way a hospital full of chairs without backs
Make visitors uncomfortable, without space to lie down
In search of respite.