Knowing that the twins love animals, Lee Hwi Jae took them to a zoo during the recording for the upcoming episode, where they were not scared upon seeing the animals in person, but rather wide-eyed with curiosity. Even when meeting animals twice their size, Suh Un and Suh Joon didn't flinch and even petted a snake after the zookeeper said that they could touch it. Upon seeing this, their father remarked, "They really have no fear," impressed by their boldness.