Jika-tabi shoes in some industries, many workers prefer them for the softness of their soles. This gives wearers tactile contact with the ground, and the concomitant gripping ability lets them use their feet more agilely than rigid-soled shoes allow. This is useful for workers who traverse girders on construction sites and need to be sure what is under their feet. Carpenters and gardeners wearing these boots can, if they wish, use their feet as an extra pair of hands, for example to hold objects in place. There is also a line of knee-high all-rubber jika-tabi that is used by workers in
The Well-Worn Lock abuse to the court. Later, she is seen with the lock from her bedroom door—which had previously been used by her father to lock them both inside—which she throws into a river. "The Well-Worn Lock" was the first of three "Millennium" episodes directed by Ralph Hemecker. Hemecker would later helm the second season's "The Curse of Frank Black", and the third season episode "Exegesis". The episode was written by series creator Chris Carter. Beyond creating the concept for "Millennium", Carter would write a total of six other episodes for the series in addition to "The Well-Worn Lock"—three in the first