So, I have always been curious about this, after hearing stories of GE people getting in trouble for not declaring a banana from the plane.

How about sealed snacks (chips, cookies, etc.) either from the lounge or from the plane? I usually end up with a bunch of those I would rather take home with me, but I usually end up discarding before entering so I won't have to deal with customs. What do you do with those, do you declare them? I don't really want to risk going to inspection over this, as I often have tight schedule and just want to go home.