I've been a plumber for years....................
Ok, plugged sewer, dug down to find the pipe and found a dog that had been buried the month before half rotted...........
My brother used a machine to unclog a sewer in a customer's yard, the machine came to a halt, the cable almost snapped, they pulled and the cable had run through a cat that had crawled into the sewer from the roof and couldn't get out................
I went to a customer's house (mobile home) and the sewer was plugged. I was going to run a cable through the bathroom but he insisted we go under the house, he went first and just pulled a plug and sewer went all over him! I went back up into the bathroom................
One year I was replacing a sewer line on an old house, I told my helper to go and make sure that the water was shut off and the toilets were flushed so we had no suprizes. Well, we weren't told about a garage apartment in the rear of the house! We had dug up the entire sewer pipe and was ready to replace it and a full tub of bathwater and a flushed toilet went into our ditch covering our boots with...........................
Tampons ALWAYs stop up old sewers.................and the machines will always pull tampons back with the cables, we call them 'little white mice'......
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Later :p