This is interesting as I also rarely see my toads shed due to the fact that there mainly nocturnal but I was always under the impression that toads would eat their old skin like frogs as I have seen my toads making movements that involve wiping the old skin off and what look to be eating the majority of it., but if you guys are also have seen old toad skin within the terrarium then I guess anything is possible with these animals which makes them all the more interesting than frog species that are common kept. I was just scared that the fact that I saw a piece of old skin the shape of a toad foot was a sign of improper shed or a illness