Thomas Sundberg and his dog Rex were walking near the Kramfors-Sollefteå airport last week when Sundberg felt the ground give way beneath him, newspaper Tidningen Ångermanland reports.
Seconds later, man and dog found themselves nearly submerged in a hole filled with excrement.
Fortunately, both Sundberg and Rex were able to escape from the slimy pool of filth.
“It stank something fierce and I took my clothes off immediately,” Sundberg told the newspaper.
“I called my wife and then ran naked to a nearby river where we jumped in the water to get rid of the worst of the shit. I just threw my clothes away.”
The hole was actually a sludge lagoon maintained by Kramfors municipality to store and dry sewage from a number of wells.
Municipality representative Tomas Lundin promised to investigate the matter to determine why the area wasn’t properly marked.