“my wife believes I sound like a Sopwith Pup first thing in the morning”.
So does mine.
Barking.
I remember when I attended Warbirds Over Wanaka 2004 with my family – my sister found the sound of the Sopwith Camel replica’s 160hp Gnome immensely hilarious, so Dad would constantly say “Oh there goes a Camel” when the situation presented itself!