Pity

Travelling back to the creation of the Daleks, the Fourth Doctor noted that the Daleks were without pity. (TV: Genesis of the Daleks)

Aboard the Imperial Dalek mothership, Davros urged the Seventh Doctor to have pity on him only for the Doctor to retort that he had pity for him before leaving him to the Hand of Omega. (TV: Remembrance of the Daleks)

in 2012, the "Metaltron", believed to be the last Dalek in existence following the Last Great Time War, painfully begged the Ninth Doctor to have pity as the Time Lord attempted to kill it. The Doctor retorted "Why should I? You never did." before being stopped by Henry van Statten's security personnel. (TV: Dalek)