At the beginning (approx. 27 sec.) of the song, [[Trent Reznor]] can be heard saying, "Eat your heart out, Steve." This is possibly directed towards [[Steve Gottlieb]] of [[TVT Records]] with whom Reznor had been feuding, as Gottlieb would not let him out of his contract. The entirety of ''Broken'' was created without the knowledge of TVT.
In the credits, "Barks and Roars" are attributed to Maise, Trent's dog at the time of recording. At 3:36, barking and "Ow! Fucker" is heard being played at half speed over the track, as Maise - then a puppy - was playing with someone in the studio, and bit that someone. (One of the recording techniques employed on both Suck and Physical was to play the guitar riff at double the speed of the track, and play the resulting recording back at half speed, for a unique, extra thick sound)
According to a previously unreleased interview Reznor did with ''Melody Maker'' magazine, "Physical" was supposed to be a "tongue-in-cheek" cover.