the problem with watching doctor who as a child is that a small part of your brain can never completely give up the idea that the doctor exists. if i saw a blue police box materialize out of thin air i would not be anywhere near surprised enough.
Do you think once Fourteen parks the TARDIS in Donna’s back yard, it sort of switches off the automatic translation (because why bother, the language is english every day now anyway)
And Donna realizes that whenever the doctor gets emotional, he accidentally slips into Galifreyan again?