Is this feeding method safe?
My sister feeds her cat partly with food from cans with pull tabs.
She pulls the top off, then puts the can down at the feeding place and
lets the cat dig the food out with his tongue.
I'm concerned about his cutting his tongue on the rim. The rim is
clearly not as sharp as that which results from using a can opener,
but it doesn't feel completely dull to me, either. (The dog also
sometimes eats from the cans after the cat's done. This concerns me
more, since dogs seem to be less careful eaters.)
Is this a valid concern, or have the manufacturers found a way to make
the rims too dull to matter?