Ha! Loud and Discordant most likely ;)

Thanks for your help with this. He was just shy of 35 years when he signed up in 1916 so maybe they saw him as too old.

These are his records here of the Regiments he was in:

http://interactive.ancestry.com/1219/MIUK1914F_129301-00829/...
Mentions something about a secret letter which is intriguing :)