Attend Ritual at Clark Hall Pub 10 times in a row within one semester (does not carry over Winter break) or 14 times in total within an academic year (carries over Winter break). On your 10th/14th attendance, you must bring the physical Ritual bar with you and place it in any drinks you consume. If the bar is snatched from your drink you must immediately finish whatever is remaining in the container. All Rituals count towards attendance, including special Rituals.
Note: some alum lay claim to a Ritual^2, consisting of 100 total rituals before there final departure from Queen's.