Heres a follow up...he passed the marble 4 days after swallowing it. And there was no change in his behavior or eating cycle. Everything went very smooth and i really thought he didnt swallow it but went to give him his morning salad and there was the marble! Amazing what these guys can do! Heres a pic that shows the size of the marble compared to a regular bouncy ball you would get out of a quarter machine. I do have others but way to "harsh" to post