You guys have advised how to place the peanut butter in various ways so that it requires pressure that would trip the spring trap. But he won't be lured; he'd rather go hungry than take the chance of applying the needed pressure. He also ignored the electronic trap; must've gotten a good jolt the other night.
The good news is that he gnawed on a chunk of poisonous block bait. Very little, but there are definite signs of gnawing in two places.
Mary