Contagious Suggestion

Enchantment (Compulsion) [language-dependent, mind-affecting]
Level: Bard * 4, Sorcerer */Wizard * 5, Warlock * 5
Components: V, S
Casting Time: 1 Standard Action
Range: close (25 ft. + 5 ft./2 levels)
Target: one living creature
Duration: 1 hour/level or until completed (D)
Saving Throw: -
Spell Resistance: -
  You influence the actions of the target creature by suggesting a course of activity (limited to a sentence or two). The suggestion must be worded in such a manner as to make the activity sound reasonable. Asking the creature to do some obviously harmful act automatically negates the effect of the spell.
  The suggested course of activity can continue for the entire duration. If the suggested activity can be completed in a shorter time, the spell ends when the subject finishes what it was asked to do. You can instead specify conditions that will trigger a special activity during the duration. If the condition is not met before the spell duration expires, the activity is not performed.
  The target of this spell can pass on the enchantment to other targets. The target is compelled to communicate your suggestion to another creature, forcing the new target to attempt a saving throw as if it were the initial target. If a secondary target successfully saves, the suggestion effect on the initial target isn't negated. If a secondary target fails, it is placed under the same Compulsion as the initial target and can further spread the suggestion. This spell can affect a total number of Hit Dice of creatures equal to your Caster Level. Creatures that save against this spell cannot be affected by that particular casting of contagious suggestion for 24 hours.
  A very reasonable suggestion causes the save to be made with a penalty (such as -1 or -2).