If they continue to be uncooperative, just show them this: https://www.youtube.com/watch?v=ZnTQMzDvTgc https://www.youtube.com/watch?v=ZnTQMzDvTgc I'd suggest

If they continue to be uncooperative, just show them this: https://www.youtube.com/watch?v=ZnTQMzDvTgc https://www.youtube.com/watch?v=ZnTQMzDvTgc I'd suggest this will improve our (i.e. demand-side) negotiation chances.