Official Rules of the Scottish Cyclist: traffic

21. One point where the Scottish Cyclist is in agreement with the Euro Cyclist: in the event a motorist disturbs one’s ride: one shall proceed to ride up beside the car, form a clenched fist and bang the boot of the car while shouting and swearing. In fact, the broad Scottish accent is infinitely better at expressing doing one’s rage than Italian. Wild arm and head movements however, add to the effect, in both languages.

Official rules — the full list