Shouldn't be too much of a problem for him, I reckon.
Fortunate that he's an Aussie as they have granite like skulls, which I can verify after being flattened by a couple or three on the rugby pitch

. And they also have small brains, which I can also verify due to the amount of them that have served me beer or coffee

!! Socks and shoes off to count to 14
If you think I'm incorrect about hard heads and small brains. Watch a game of Aussie Rules Football and tell me I'm wrong
Love ya Razz. Hope your recovery goes well.
Kind regards, Jonah