It was most likely discarded for a valid reason. I mean, who throws away a perfectly good banana?Banana was in skin I believe
If you want to move 3 in front of 2 no objection.
Besides, this is a very slippery slope. It starts with taking only wrapped food or fruit in peelable skins from office garbage cans. "Look, a banana, and it's right on top" or "it's still in the sealed wrapper" but soon leads to something a little more adventurous - like finishing a stranger's half-eaten pizza. Next thing you know, you're 'shopping' from the dumpsters behind the grocery stores.