"This has never happened before."
"It's okay Doctor"
"No it's not, it's never let me down before"
"Well it is old isn't it?"
"Age has nothing to do with it Rose!"
"Come on Doctor surely you have had it for awhile it was bound to stop working eventually."
"I know but I love my sonic screwdriver, it did everything"
I noticed there was a lack of sonic screw driver let downs.