To amuse myself and pass the time, I am holding an impromptu training session in giving intra-muscular injections.
I have three students, and I'm training them from a patient's point of view rather than the medical training they will otherwise get.
They're all flushed and anxious.
There are lots of little techniques to make the injections less painful and to ensure the patient gets the drug administered effectively.
I'm laying here, with my buttocks facing the ceiling as they practise getting the needle in confidently, looking for scarred areas, getting rid of air bubbles and checking for arteries.
I'm sure they all think I'm bonkers, but if it means that as they go through their career they always give injections that don't hurt, I'll be happy.