I was writing in my log the other day and realised that when I abbreviate "High PPO2" (in the sense of the drill), I write HiPPO2 - so this is now called the Hippo drill in my book.
They say that Hippos are one of the most dangerous animals - I think that's now true in more than the literal sense!
For the non english speakers, Hippo is short for Hippopotamus - one of these
