My friends lived in a very green suburb, near semi-tamed bush home to various wild creatures, & also had a downstairs toilet in their laundry, next to a floor length window kept open a tad as a cat entrance. He was sitting in what his wife described as the "reading room" one day when their moggy brought in a snake & dropped it on his feet.

Fortunatey the snake was dead.

Sandra (who hasn't been owned by a cat for about 20 years due to living in an inner city apartment building)