The Doctor's TARDIS had an instruction manual, but the Doctor rarely looked at it. His failure to heed the instructions led to numerous backfiring attempts to work the TARDIS controls properly. The TARDIS Instruction Manual that belonged to the First Doctor was one of the segments of the Key to Time scattered throughout the Doctor's timeline. (COMIC: Time & Time Again) The Eleventh Doctor admitted that, at some point, he'd disagreed with the manual so much that he threw it into a supernova. (TV: Amy's Choice)