Wow, that's incredible. And I'm sorry your cat passed... Vets often have weird tales of operating on dogs who ate plush toys, rubber objects, even bras... Your bottom line is right--give that attention to those critters who behave a bit differently. Absolutely.
Ha Yes! And Im pretty sure Styrofoam wont dissolve in stomach acid and so makes blockages. My special interest hen used to eat some marvellous things... it's like chicken pica.
Your first line inspires visions for me... A Sunday afternoon rerun, and a Jacques Cousteau murmuring, "And making this submerged rock its lodge is an oyster, sighted only infrequently by les poulets, chickens, for very few have learned the art of scuba diving."
Yes. Eggs. Snail shells. Hmmm...