What the....?

I was in the garage cleaning the cat boxes (again). Usually, when I do this, I leave the dog gate open so that Ray can follow me into the garage and do some supervised poking around. Most of the time he doesn't make it past the cat-carrier that we use to transport Moonie and Hugo to the vet. (Some mighty interesting smells must emanate from that crate.) Today, however, although the dog gate was open and Ray had followed me through it into the laundry room, he did not follow me into the garage.
I heard rummaging coming from behind me but didn't pay too much attention. Ray is always rummaging through something, but he's gotten to be such a good dog that I don't worry about it so much anymore. I finished up what I was doing and went back into the laundry room. No Ray.
I looked out past the dog gate into the dining room. There was a white thing on the carpet. I looked farther. Another white thing. Through the dining room, into the hall; every couple of feet another white thing.
Puzzled, I exited the laundry room, closed the dog gate behind me and went to investigate.
The white thing was a fabric softener dryer sheet. The next white thing was another one. And then another one.
I followed the trail of dryer sheets through the house. Ray had taken a stack of them (not the whole box) and carried them to where he could comfortably roll in them. But even though he had dropped a bunch as he walked, the taste of a whole stack must have been too much. He had left the rest of them, still neatly stacked, in the front hall.