We’re guessing software engineer Jenn Wong was one of those kids who always colored outside the lines because her latest endeavor -- a map of human waste on San Francisco streets -- is downright bananas, yet oddly poignant and fascinating.

Wong started compiling the information in November of 2014, so we’re talking about a lot of poo. She based the poo plots on calls to the city’s 311 phone service from 2008 to 2015.

While the atlas, bespeckled with turd emojis, has gotten plenty of laughs, Wong says it’s raising awareness about serious issues like homelessness and sanitation too.

You can check out the poop map for yourself here.

And watch your step!