Info on mushrooms

im about to get some mushrooms so heres some questions....

i no its almost imposible to know if they are real mushrooms but is there any ways you guys no of like blue color bruising or a quick way to see if they will make you trip?


also how long do u think they would stay good for.... is there and easy way to store them and keep them good?

I don't know much about shrooms but this kid I knew had a quarter put away in his closet in pitch black for a few months and then they ate them up and tripped their balls off.

http://www.erowid.org/plants/mushrooms/mushrooms.shtml