RN Subs

Surgeon Lieutenant Commander
Is a rank which few can attain.
You should know just a bit about medicine
And it's not a bad thing to have brain.

But if in addition your 'Dental'
A knowledge of how to cause pain.
Is generally thought to be useful
For you too, I'd recommend brain.

But professional duties in Medway
Are quite unimportant, I think,
Your chief jobs are censoring letters,
Amenities, eating and drink.

So here's to you 'peatie' and 'toothie'
And pray don't take action for slander.
For I hope I'll still be here to toast you
When you each become Surgeon Commander