Mmnnn, I don't want to hurt the guy, and I don't think regular traps would put him off. Just make him more persistent. He's pretty typical for one of us that way, I think - the more challenging it is, the more enticing.

[Putting down the cup and folding his hands.]

I know it would be exceptionally difficult, but if he could be spooked off the first time, he might avoid the boat altogether afterwards. The man's superstitious and would avoid anything that seems unnatural and perhaps cursed.