[culi]

Not to mention that if you fail and accidentally pick a false morel, it's still an edible mushroom either way

[yaacov]

False Morels (Gyromitra esculenta) can have toxic amounts of hydrazine, it is usually safe WHEN COOKED but a couple people have died from them.

[vidarh]

People have been hospitalized for just standing around the pot while cooking.

And a key point is that you need to know how to cook it, e.g. to boil it sufficiently in a well ventilated room and throw away the water.