unfortunately, yes... i noticed him poking around with his poo, which he doesn't normally do. so i took a close look at the poo and saw a wormy thing in it. thinking he had worms, i thought i would bring him into the vet this morning... then i cleaned out his bowl and that's where i discovered the source. i live in this old spanish-y type house, and the landlady doesn't seem to feel screens are necessary on the ancient windows, so flies get in. i noticed they were by his food on monday. i didn't even realize this could happen... the food is definitely going in the fridge if he's not eating it.
Chances are that it wasn't maggots but meal worms. They can get infested very easily in the factory and then you buy the dog food or dog bones, bring them home and you then get them every where. We got them from a box of dog bones once and had to have the house sprayed with dust (it kills them). We wrote a letter to the company and they ended up paying 1/2 the bill and giving us coupons for free stuff (which we never used).