Final answer:
The provided text excerpts do not contain information about Dorrison's response to Michael Sandlin's argument about his tiger, Tony. The question is likely related to animal welfare and captivity issues, but without Dorrison's specific response, a complete answer cannot be given.
Step-by-step explanation:
The question seems to involve an ethical or philosophical debate about the treatment of animals, particularly those kept in captivity like Michael Sandlin's tiger, Tony. Unfortunately, without additional context, it is not possible to provide Dorrison's specific response as it is not included in the provided text excerpts. The excerpts discuss unrelated narrative elements from possibly fictional works, touching on themes of reliance on technology and the vitality of a captive animal, but do not directly address the question about Dorrison and Sandlin.
From a broader perspective, the question likely pertains to the well-being of captive animals and the human perception of their happiness. Arguments against the removal of long-term captive animals often center around the disruption of their accustomed environments, while proponents for their relocation may argue for the inherent value of a more natural habitat and its potential positive impact on the animal's well-being.