I also have a careless adult son...something similar happened to the quilt I made him a few years ago...
He brought the quilt over to be washed, (yes, he still does his laundry here) and says, Mom, the dog was chewing the other day and you need to repair the quilt you made....I asked how the dog got at it and he had folded it up so that it was a nice comfy bed for the dog....
I repaired it....I took 12" squares of fabric top and bottom and turned the edges under and stitched it over the holes and made an X to hold it in place.....
He held it up, and looked at it....never said anything but, Thanks...I think his red cheeks :oops: said all that was neccessary....P.S. it is still being used.....