TCFS is an eclectic mix of the less conventional fighting styles, specifically modified for self-protection. There are no rules and the system addresses the harsh reality of street attacks, where a person may be antagonised by a single attacker, or indeed by multiples. TCFS is devised exclusively for street application where there are no constraints. It is an unforgiving fight system.

Its Founders are Gurus George and Mandy Johnston, resident in Scotland; and their experiences lie with unprovoked street attacks from multiples, cage fighting and preserving gypsy honour.