uumm im pretty sure its "safe" but after awhile weed does get stale after awhile.. if its not kept well and it doesnt taste as good, and hurts ur throte a lil more... but i dono how old of weed are we talking about??
Stick it between two peices of bread. Or stick it in a film case with a little piece of bread or orange peeling. your weed will be back to normal in no time. If you dont want to do either just smoke it. It will probably burn fast though.
thanks very much guys, i just needed 2 know, cause this girl i know, we found like 100 buck's worth of weed in her mum's draw, but i smelt like rabbit food or some shit, and i didn't know it was safe, but thank's very much. peace.