Pursued by Weeping Angels, the Eleventh Doctor referred to a corridor aboard the Byzantium as a time bomb, a death trap and a dead end. (TV: Flesh and Stone)
In response to Melanie Bush's question of if the memory TARDIS was safe, the Fifteenth Doctor replied that it was an "absolute death trap." (TV: Empire of Death [+]Russell T Davies, Doctor Who series 14 (BBC One and Disney+, 2024).)