I'm on a boat, which is long and thin, for passengers, with benches along the sides. I'm looking for a backpack which I apparently misplaced, so walking along the length of the boat, looking on both sides. I see a backpack that resembles mine, and I think it's the same, though this one is blue and mine was green, but I am not sure of that. So I ask the girl who is sitting on the bench if that is her backpack and she says it is. I say I think it's mine, can we check what's in it? She says sure, and takes out an item, a clear canister full of nuts or something. I say that is something I would totally have in my backpack. So she takes out the next item, which is a similar container but with something else inside. I say no, I wouldn't have that in my backpack, it must be hers. I move on, and later find my backpack just laying around somewhere.