"I'm hesitant about proceeding further before we know what it is." Russia Doctor telling Zubov about his concerns
This unnamed Russia doctor is a minor character in Python 2.

Python spewing acid on the doctor
He tells Zubov about him not wanting to open it because them don't know what is in the box. An assistant gets movement in the box and Zubov tells he to check it. The doctor tells the assistant to check it. The assistant burns his hand and a giant python kills the assistant.Then spews acid on the doctor killing him.