Same, same, but different

I was reading two different, old issues of Kalle Anka & C:o recently.
Nice reading while having a lazy day in the countryside.

But... two of the stories were not that different. Hmm...
Why use a good plot once if you can do it twice. ;-)

Stories from WDC 166 (1954) and Scamp 16 (1960).
The Pluto story was written by Don Christensen and the Scamp story was probably a re-write by someone else.