Answer:
Given that I were a servant at Dr. Heidegger's house, it would not at all please me to have witnessed the people having taken the elixir for themselves and have fallen into the trap laid down for the naive people by the likes of them. My reaction would be that of disapproval towards them. Those who chose to leave the house in the hour of need are nothing but cowards who gave up too soon instead of having gone through the ordeal all the way.
Hope that answers the question, have a great day!