I'm in BIG trouble

So the kids and I are reading the Friend magazine for FHE tonight and there is a picture of a dog. Paige got excited about it. I said "if she can say doggie, I'll get one." Mind you, this is a 16 month old that can only say mom, dad, and hi-and not on command. Also, this is 3 other kids that REALLY want a dog. I had no idea that I had set myself up for disaster.
After about a minute, Paige said "Do die" WHAT?????
My poor kids were so excited, discussing what breed, when we'd go to the pet store...
until I dashed their hopes again, telling them they were only getting a stuffed animal.
OOPS!