Wait, Lemme Alphabetize That

I've noticed, over the last several hundred trash runs, that some passengers have a strange compulsion to give me one item of trash at a time, rather than grab the whole stash and chunk it. And it doesn't seem to be a conscious decision... it looks like they're actually noticing each successive trash piece after they fork over the last one. Like there was only an empty bottle when they grabbed the bottle, and wierd, now there's a cracker wrapper, so lemme give you that now and hey, where'd that napkin come from here I better give you that too!
I'd like to visit a world where objects materialize in front of you and it's really no cause for alarm.