Good Morning and welcome to Just answer. I am Dr. Loretta, a licensed veterinarian and I am happy to answer your question.
It is not uncommon for hamsters to become stressed due to the new environment and have a minor digestive disturbance causing loose stool. AS long as Dobby is still active and eating, this will most likely resolve on its own.
If this continues or worsens, then follow the guidelines given in this site:
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