Country Delight — Milk spoilt by cat with no SIGNS of tear at all

I am no enemy of country delight. I have been taking the product since really long. I have had no problems.
I usually get up early and also hang the basket at night so morning the milk delivery can be in the basket. But yesterday I forgot. And following morning I couldnt get up early.
The milk was kept at my door step no bell was rang. I got up to see the cat near the milk and my door. Since the packet was not broken from anywhere at all . It was intact no leak. So I boiled the milk made my tea. There was a bad smell in the tea, FISHY AND WORMY TASTE. Since I had added the gulab jamun broth to it. I thought that would have spoiled Only to realize this was the cat . It had spoiled the milk even without breaking the packet. I called up the country delight customer care to mention what had happened as I thought to my HORROR what if a mother had given this milk to her BABY. Thought this was NECESSARY to bring to notice.