Ditto

"He made his way south and east. They'd been here for four days and he'd spent much of that time hiking nearby. He knew the place well, hd found impromptu paths and trails, made by deer -trampled leaves, broken branches and pellets - and people (ditto, minus the shit).
He moved slowly, cautiously. Not afraid of getting lost, afraid of whom he might run into out here."


I don't understand what's between the parenthesis. Provided that I've given enough context, what's meant by 'ditto, minus the shit'?

It's an attempt at humour.


Ditto - The same as stated above or before.

- http://dictionary.reference.com/browse/ditto


The implied repetition: "he found impromptu paths and trails, made by PEOPLE -trampled leaves, broken branches and NO pellets"