Interesting idea! I will have to look into whether it has been tried on farmed animals or laboratory animals. I would have a concern similar to the concern I have with the classical conditioning experiments: aversion to the more intense pain might reflect reduced volition rather than welfare maximization. But it does seem plausible that volition is not as much of an issue when the pain is only administered with a low probability.
Interesting idea! I will have to look into whether it has been tried on farmed animals or laboratory animals. I would have a concern similar to the concern I have with the classical conditioning experiments: aversion to the more intense pain might reflect reduced volition rather than welfare maximization. But it does seem plausible that volition is not as much of an issue when the pain is only administered with a low probability.