Here is the job description from the BBC Channel 4 series on history's worst jobs:
Get down and dirty with a fascinating career in coprolite collection. Dog and cat shit takes various forms, from stumpy little nuggets to sludgy piles with grass in, and as for the white ones – what ever happened to those? But if you know your quality faeces from your average dump, apply immediately.
This role involves travelling the streets of London, most probably mainly on your hands and knees, sniffing out those stinky critters. Of course, there will be no protective gear, and the pooper scooper hasn't been invented yet, so you'll be bare-handing the pooch poo straight into your pockets and knapsack.
Once you've collected a good load, you can guarantee that a path will automatically clear before you, all the way to the tanners. There they will pay you a princely sum for the plops to add to the stinking urine they already have in their sweet tanning sumps.
You'll be doing your bit to keep the shoes of Londoners clean and preserve the leather of the nation. Now wash your hands.