actually trying to hide the food....perhaps for later consumption. They do the same thing with toys they drop in the water. They also hide unfinished food by putting toys on their food dishes. I have seen this with my own cats.
One suggestion was to move the water dish away from the food dish....not sure it is worth the effort to bother.
I just dump the water and refill the bowl.
PS Stainless steel or enamel are supposed to be the best dishes for food and water. Plastic gets scratches...and the scratches
holds onto the dirt and create bacteria colonies that can lead to feline acne. Even if you have a dishwasher, plastic is not recommended.
Aluminum can leach into water. Not healthy.
Also make sure the bowls are low and wide so the cat's whiskers do not touch the side of the dish.
http://www.onlynaturalpet.com/product_detail.aspx?item_guid=37E30981-B826-41B9-8D16-CB41BD168335&click=124&9gtype=search&Great bowl. Could not get image to show
This is a very interesting concept....
http://www.onlynaturalpet.com/products/Wetnoz-Urban-Pet-Bowls/313040.aspxThe unique 'pill' shaped Urban dish conforms ergonomically to a dog's mouth. The dish placed inline with a dog's body conforms ergonomically to their mouth and allows ears to fall outside of the bowl. The Urban Dish can also provide relief to cats with hyper-sensitive whiskers. The dish is placed perpendicular to a cat's body reducing sensitive whisker contact.Wetnoz Urban Dish
http://www.petco.com/product/104569/PETCO-Stainless-Steel-Striped-Cat-Bowl.aspx?cm_mmc=CSEMGooglebase-_-Cat-_-PETCO-_-1060155&mr:trackingCode=B0E8EB15-8381-DE11-B7F3-0019B9C043EB&mr:referralID=NAhttp://www.petsmart.com/product/index.jsp?productId=3436973&utm_source=googleproductad&utm_campaign=3436973&utm_medium=cse&GANTrackingID=pets_59992629_________________________________________________________________________________________________________________________________
FOUND THIS_
DUNKING FAVORITE TOYS IN FOOD OR WATER BOWL
Has your cat ever dropped his favorite catnip mouse or rubber fetching ball in his water bowl? Or, have you gone to re-fill his food bowl, only to find a special toy of his right in the middle? It just might be that your cat is trying to find a "safe" place for his favorite things. It often happens that the toy that ends up in the water or food bowl is often a toy that has recently been enjoyed by your cat, or even by your cat with you. In the wild, cats often take their prey back to their "nest" area, and hide it from predators. Indoor cats don't really have a "nest" per se, so they often consider their food and water dishes as the "safest" areas within their "territory".