I get puff balls, too.
When I was in college, I lived in an apartment that had a leak under the kitchen sink. It went unnoticed for some time, and water was trickling out and running along the baseboard into the living room. We only noticed it when we found mushrooms sprouting from the carpet! I have no idea how mushroom spores got into the living room carpet.
Yes! My gf found a beautiful puff ball that made us several meals.
Yup. And the underground mycelium is a beneficial part of soil life.
I’d say your name is your cite.
Well…limited uses perhaps, but some uses 
.
Mushrooms are good - they break down organic matter and show that you have healthy soil.
Something similar happened to me in a previous rental.
… and the spores are airborne, and can float very long distances.
I came here thinking this thread was about the new Magic Mushroom shops that are cropping up here in Ontario.
They just opened one in my city, the owner admitting while not entirely technically legal, they’ve only been cited in many cities but, so far, no one has taken them to court over it. I found that surprising. Meanwhile, deafening silence from city hall or local police.
What a time to be alive!
Despite being even easier to ID than morels, and seeing a few in our yard over the years, one almost soccer ball sized, I’ve been leery of harvesting and eating them for whatever reason.
How do they taste- are they “mushroomy tasting”? What’s a good way to prepare them?
I think mushroom spores are everywhere. It’s just a question of where the growing conditions are right.
Those don’t look like the mushrooms in my lawn. I get at least three species (a little brown one, a large white one, and puffballs) but nothing like those.
Yup, psilocybin shrooms require surgical operating-room type cleanliness. Contamination is extremely easy.
All sorts of ways, but one of my guesses would be the bottom of your shoes. Would be very easy to track them inside. You wouldn’t know unless, of course, unless where they land turns into conditions to promote their growth.
We had a similar event years ago in a rental home, due to a toilet malfunction. No idea what genius decided to carpet the bathroom.
The OP’s mushrooms should degenerate and die within a short time, or could be raked up if their appearance is offensive (or if there’s a perceived hazard to unattended children or dumb pets).
Ironic given that out “in the wild” they are usually found growing in literal cow shit.
Yes but that’s because only a tiny percentage of the spores (maybe 1%?) grow to full fruition in the wild. The rest are out-competed by wild mold, etc.
Whereas in an indoors environment, the shroom-grower is aiming for something like a 100% growth rate with no mold contamination.
I’ve grown psilocybin mushrooms in a sweater box with great success. I’ve also grown oyster mushrooms outside in a straw filled laundry basket nestled under a huge rhododendron.
Be careful:
Yeah, unfortunately the death cap (Amanita phalloides) and coccora/coccoli mushrooms (including A. calyptroderma and A. vernicoccora) are very similar-looking. All purportedly taste great, the first one will kill you. Which is particularly insidious as most nasty, poisonous things at least have the good grace to be bitter or otherwise unpleasant. Not the death cap - it’s sends you off to your grave with a tasty final meal.