There's a lot more reasons besides that one why I'm not innocent, Neville.
Americanisms annoy me more than anything due to having to take a crowbar to Microsoft Word everytime I have to write a letter to prevent it automatically 'correcting' words to have 'z' in them, changing Sulphur to Sulfur.... Having to struggle to do that means that when there is some free will involved and people who should be using English use American... its frustrating.
Interestingly, last time I was over in Aus, a lot of mechanics had changed the word 'Tyre' to 'Tire'. This conversation makes me tired to be honest. I'm just holding back the tide with the palm of my hand as the dictatorship of Microsoft tells the world how they should be spelling anyway. American English is the unfortunate future.