It seems only possible to me if the blood is captured and cannot flow back. Anyway, what do u do in the clinic in such a case? Just wait, sit and see (view, close-up)?
If u want such a rocking machine u should know the legal side in ur country first. And u will need someone to care about it because it is not really maintenance free (spare parts). This is the reason why they r often just standing around somewhere after being bought.
RE: Lazly, look here!!(Wild Life2)
When I walk into a trap it goes like a whip, too! And whips on and on.....