Kermit -bad news (again)

Well, I dropped Kermit off at the vet this morning... he has been throwing up since yesterday and won't eat, since a part of his soft frog toy was in it I figured that was all it was... they found 2 large rocks on the xray! I have been watching him like a hawk!!! I walk him on a leash, he is in the laundry room all day and night... how did he get a rock!?!
So he is in my thoughts right now as he goes in for surgery to remove them... this isn't the first time... and that is why I am so surprised as I was sooooo careful! Let's all hope for the best... I will let you know how it goes.