I spotted these from my window, knew time was of the essence because Shaggy Manes deliquesce into black goo (hence, "ink cap") within a day and I didn't know how old they were. Also, my ADHD gives me a warped sense of time so I panicked, gathered them, swept them into the kitchen, sauteed them with butter, shallots, thyme, and pinot grigio; spread some soft cheese on bread, cracked some pepper, zested a lemon, and made panic toast.
Full disclosure: my dog (who is also white and shaggy but does but deliquesce, bless her heart) booped the mushroom, knocked the wig clear off the lawyer, and I feebly propped it back on before taking that first picture.
I had a moment as I was deglazing the pan with pinot grigio: "Wait...aren't ink caps toxic with alcohol?" (Double-panic toast!) But shaggy manes don't have that particular effect, apparently (or only rarely), and I always cook it off pretty thoroughly.