There are lots of good reasons...

... why wedding rings are so often made of a nice, non-reactive metal. A rarely noted one is that, should you take your ring off briefly, you don't have to worry that the dog who's trying to eat it could do much real damage.

(I was relatively sanguine about socks, pens, soda cans, and even a $2 bill, but this is ridiculous. Actually, I was pretty wroth about the bill, too, because I think a money-eating habit would be really, really bad.)