"Sober" is a song on Tool's first full-length album, Undertow.
Adam Jones has stated in an interview that the song is about a friend of the band whose artistic expression only comes out when he is under the influence. "A lot of people give him shit for that," Jones explains. "If you become addicted and a junkie, well, that's your fault."
A video for "Sober" was made in 1993. It was filmed using stop-motion animation, with characters' models designed by Adam Jones and directed by Fred Stuhr. It was the first of Tool's videos to be made in stop motion, the earlier promo video for "Hush" being live action and featuring all four band members. However, brief flashes of the musicians can be seen near the beginning, as well as a live-action figure twitching and vibrating violently (à la the film Jacob's Ladder).
Besides being one of their first videos, it is also one of Tool's most ambiguous. Its protagonist is a small, humanoid being, who lives and sleeps in a rusty room sparsely decorated with a bed, table and chair. He happens upon a wooden box, which he opens near the beginning. Its contents are kept hidden for the majority of the video's duration, but it seems whatever it is has had adverse effects - there are repeated shots of the humanoid levitating in his chair, and his head and arm vibrating wildly. While experiencing these effects, he ventures through his living quarters and its many corridors.
The climax provides a barrage of imagery and revelations: a figure attached to a wall behind a translucent screen, a sentry of sorts wielding a mobile, robotic cannon and a wormlike, organic creature hidden within the house's pipes. At the end, the box is empty, leaving the viewer to determine its meaning.