'Could they've eaten poison before you caught them?' said Colon.
Wee Mad Arthur bristled. 'No one puts down poison round there. I won't have it, see? I got all the contracts along the Shambles, and I won't deal with any gobshite who uses poison. I doesn't charge for extermination, see? Guild hates that. But I chooses me customers.' Wee Mad Arthur grinned wickedly. 'I only guz where's there's the finest eating for the rats and I clean up flogging 'em to the lawn ornaments. I find anyone using poison on my patch, they can pay guild rates for guild work, hah, and see how they like it.'
'I can see you're going to be a big man in industrial catering,' said Colon.
Wee Mad Arthur put his head on one side. 'D'youse know what happened to the last man that made a crack like that?' he said.
'Er... no... ?' said Colon.
'Neither does anyone else,' said Wee Mad Arthur, cos he was never found. Have yez finished? Only I got a wasps' nest to clean out before I go home.'
'So you were catching them under the Shambles?' Colon persisted.
'All the way along. 'S a good beat. There's tanners, tallow men, butchers, sausage-makers... That's good grazing, if you're a rat.'
'Yeah, right,' said Colon. 'Fair enough. Well, I reckon we've taken up enough of your time - '
'How d'you catch wasps?' said Nobby, intrigued. 'Smoke 'em out?'
''Tis unsporting not to hit them on the wing,' said Wee Mad Arthur. 'But if it's a busy day I make up squibs out of that No. i black powder the alchemists sell.' He indicated the laden bandoliers over his shoulders.
'You blow them up?' said Nobby. That don't sound too sporting.'
'Yeah? Just ever tried settin' and lightin' half a dozen fuses and then fightin' your way back out of the entrance before the first one goes off?'
'It's a wild-goose chase, Sarge,' said Nobby, as they strolled away. 'Some rats et some poison somewhere and he got them. What're we supposed to do about it? Poisonin' rats ain't illegal.'
Colon scratched his chin. 'I think we could be in a bit of trouble, Nobby,' he said. 'I mean, everyone's been bustling around detectoring and we could end up looking a right couple of noddies. I mean, do you want to go back to the Yard and say we talked to Wee Mad Arthur and he said it wasn't him, end of story? We're humans, right? Well, I am and I know you probably are - and we're definitely bringing up the rear around here. I'm telling you, this ain't my Watch any more, Nobby. Trolls, dwarfs, gargoyles... I've nothing against them, you know me, but I'm looking forward to my little farm with chickens round the door. And I wouldn't mind goin' out with something to be proud of.'
'Well, what do you want us to do? Knock on every door round the cattle market and ask 'em if they've got any arsenic in the place?'
'Yep,' said Colon. 'Walk and talk. That's what Vimes always says.'
'There's hundreds of 'em! Anyway, they'd say no.'
'Right, but we got to arsk. T'aint like it used to be, Nobby. This is modern policing. Detectoring. These days, we got to get results. I mean, the Watch is getting bigger. I don't mind ole Detritus bein' a sergeant, he's not bad when you get to know him, but one of these days it could be a dwarf giving out orders, Nobby. It's all right for me 'cos I'll be out on my farm - '
'Nailin' chickens round the door,' said Nobby.
' - but you've got your future to think about. An', the way things are going, maybe the Watch'll be looking for another captain. It'd be a right bugger if he turned out to have a name like Stronginthearm, eh, or Shale. So you'd better look smart.'
'You never wanted to be a captain, Fred?'
'Me? A hofficer? I have my pride, Nobby. I've nothing against hofficering for them as is called to it, but it's not for the likes of me. My place is with the common man.'
'I wish mine was,' said Nobby gloomily. 'Look what was in my pigeonhole this morning.'
He handed the sergeant a square of card, with gold edging. ' Lady Selachii will be At Home this pm from five onwards, and requests the pleasure of the company of Lord de Nobbes, ' he read.
'Oh.'
'I've heard about these rich ole women,' said Nobby, dejectedly. 'I reckon she wants me to be a giggle-low, is that right?'
'Nah, nah,' said the sergeant, looking at passion's most unlikely plaything. 'I know this stufffrom my uncle. At Home is like a bit of a drinks do. It's where all you nobs hob-nob, Nobby. You just drink and scoff and talk about literachoor and the arts.'
'I haven't got any posh clothes,' said Nobby.
'Ah, that's where you score, Nobby,' said Colon. 'Uniforms is okay. Adds a bit of tone, in fact. Especially if you look dashing,' he said, ignoring the evidence that Nobby was, in fact, merely runny.