Lolz!! My dad has a ranch in east Texas and I have been mushroom hunting. You must know which species you pick up to eat because the consequences could be fatal. I know that there are roughly 3000 species of mushrooms and only 60ish are deadly... With that being said, a third of those are found in pastures like my dads. So I will give my fool proof method when checking to see if they are edible or not.

• Rule number 1: Never eat one if you can't identify the mushroom 100%
• Rule number 2: Take spore prints
  • This is easy.. All you need is a solid glass ( non-transparent ), some tin foil or blank white paper , and the mushroom you're identifying.
    • Place the gills face down onto the paper or tinfoil with the cap facing upwards and place the cup over the mushrrom. Now come back about 30-45 minutes later and this is what you will have...
      
      Source

Also Beware of the LBM's ( Little brown mushrooms ). They are most commonly mistaken for pycilicyben cubensis but in fact very deadly.
Namaste~