Villagers jump on beds

If a Villager manages to find a way onto a bed, he will jump and spin around like a child until he's pushed off; breaking the bed works too.

Steps to duplicate: (Photo is also provided.)

• Make a 4x4 wall 2 blocks high.
• Place a bed inside the area.
• Spawn a villager near the bed.
• Wait for the villager to walk over the bed.
  The villager is now jumping on the bed and spinning in circles. This also happens with baby villagers.