Last night as we were leaving the park after closing (8:15), a couple of kids came up to us to ask us (and others around us) for our ticket stubs. We waved them off and said we didn't have any to give, which we didn't. They moved on the the next group behind us and we heard them claim to be collecting them for their principal at school. As we walked back to the car we then tried to figure out what the possible benefit could be to collecting the tickets.
What we came up with was that it was a scam to try and get people to accidentally give up multi-day tickets that still had visits left on them.
Anyone else have an idea?