Shaggy mane mushrooms (Coprinus comatus) are one of my favorite wild mushrooms to eat, and they taste great in simple recipes. They can also be grown on a variety of substrates. However, they are often found growing from oily asphalt or along the sides of busy roads- places where contamination from
petroleum, herbicide or heavy metals could be a real problem. I only eat shaggys from uncontaminated places and when they are still completely white in color.
Alcohol inky or "tippler's bane" (Coprinus atramentarius) is not one of the ones I eat. This is the one that causes a toxic reaction when eaten with alcohol. They are not as tasty as the shaggy mane, so I don't bother with them.
I wouldn't drink a lot of alcohol with the shaggys, either, although this is not usually a problem with this species. And of
course, always be 100% certain of identification before eating any wild mushroom and only eat a small amount the first time.