After having been recorded at the band's first sessions, 'Lock the Door' appeared on the 1986 Demo Tape, the first one ever circulated by the band. The cassette also featured a "remix" of the song. Though no live performances are documented, it is well possible that 'Lock the Door' was part of the setlists of several early gigs On a Friday played, among them the Jericho Tavern on august 4th 1986 and the London School of Economics in 1988.