You didn't knock on the Patrician's door. He summoned you in the certain knowledge that you would be there.
Vimes sat back, enjoying a moment's peace.
Something inside his coat went: 'Bing bing bingley bing!'
He sighed, pulled out a leather-bound package about the size of a small book, and opened it.
A friendly yet slightly worried face peered up at him from its cage.
'Yes?' said Vimes.
'11 am. Appointment with the Patrician.'
'Yes? Well? It's five past now.'
'Er. So you've had it, have you?' said the imp.
'No.'
'Shall I go on remembering it or what?'
'No. Anyway, you didn't remind me about the College of Arms at ten.'
The imp looked panic-stricken.
That's Tuesday, isn't it? Could've sworn it was Tuesday.'
'It was an hour ago.'
'Oh.' The imp was downcast. 'Er. All right. Sorry. Um. Hey, I could tell you what time it is in Klatch, if you like. Or Genua. Or Hunghung. Any of those places. You name it.'
'I don't need to know the time in Klatch.'
'You might,' said the imp desperately. Think how people will be impressed if, during a dull moment of the conversation, you could say Incidentally, in Klatch it's an hour ago . Or Bes Pelargic. Or Ephebe. Ask me. Go on. I don't mind. Any of those places.'
Vimes sighed inwardly. He had a notebook. He took notes in it. It was always useful. And then Sybil, gods bless her, had brought him this fifteen-function imp which did so many other things, although as far as he could see at least ten of its functions consisted of apologizing for its inefficiency in the other five.
'You could take a memo,' Vimes said.
'Wow! Really? Gosh! Okay. Right. No problem.'
Vimes cleared his throat. 'See Corporal Nobbs re time-keeping; also re Earldom.'
'Er... sorry, is this the memo?'
'Yes.'
'Sorry, you should have said memo first. I'm pretty certain it's in the manual.'
'All right, it was a memo.'
'Sorry, you have to say it again.' 'Memo: See Corporal Nobbs re time-keeping; also re Earldom.'
'Got it,' said the imp. 'Would you like to be reminded of this at any particular time?'
The time here?' said Vimes, nastily. 'Or the time in, say, Klatch?'
'As a matter of fact, I can tell you what time it - '