[
  {
    "situation": "human_busy",
    "waiting_time_seconds": 10,
    "robot_state": "waiting",
    "appropriate_action": "remain_still"
  },
  {
    "situation": "human_busy",
    "waiting_time_seconds": 60,
    "robot_state": "waiting",
    "appropriate_action": "sit_down"
  }
]