It’s not so strange that some men experienced hallucinations after eating some popular fish–though it is apparently (and thankfully) rare. The strange part is that it’s reported in Practical Fishkeeping magazine. Though I guess eating fish you keep in your aquarium is all kinds of practical… Probably not the kind of practicality the magazine’s advocating, though.
A fun, related fact: the species of fish consumed by the men was used “as a recreational drug in the Med[iterranean] during the Roman Empire”.
(via PFK: “Men hallucinate after eating fish.” [Apr 19, 2006])