CASE LAW - Basi v The Superintendent of Motor Vehicles
Spencer Basi was stopped while driving a motor vehicle under the influence of marihuana. A Standardized Field Sobriety Test was conducted after an initial questioning by the arresting officer. Mr. Basi showed symptoms consistent with marihuna impairment, was prohibited from driving for 24 hours and had his vehicle impounded for a similar time period.

Metro Vancouver has several panhandlers who walk on the raised median in the middle of the roadway soliciting money from occupants of vehicles in the left turn lane waiting to turn at the intersection ahead.
If you don't check your mirrors, you don't know what you are missing!