Want to know how to easily piss people off in their own countries? Then check out this helpful guidebook by Cale, the artist behind the popular webcomic Things In Squares. Whether you’re looking to upset the French, the Germans, the Mexicans or the Japanese, his tongue-in-cheek comics will show you the best style to go about it. Don’t like the Italians? Then abuse their beloved spaghetti and watch the tears begin to fall. Want to know what really upsets an American? Dedicate them a normal-sized plate of healthy food and find out for yourself. And if you really want to hurt a Canadian then just assume they’re American and you’ve made an enemy for life. Scroll down to see if you can find your own country in there. Did he get it right? Let us know in the comments below, and don’t forget to vote for the best!