Me: I'm going to the supermarket.
Wife: Get me some tea. But not the big 100 bags packet. Get the small packet with 50 bags. DO NOT GET THE BIG PACKET.
Supermarket: 50-teabag packet: $8.50.
Supermarket: 100-teabag packet: ON SALE!!! HALF-PRICE!!! $6
This is an existential-level puzzle.
