I'm far too senile to remember the question; you say *I* asked you something? How can you know? That was hours and *hours* ago!

I owe this facile explanation to my advanced old age, which has brought me so much wisdom that you must honour and respect me. Sit at my feet and beg to be allowed to learn from me, that sort of thing.

Or something...

What was it you were selling, again?

Have you seen my goldfish anywhere?

I must have mislaid it.