On the December 26 airing of tvN's 'Nest Escape 2', the teenage and pre-teen cast members wrapped up their unchaperoned trip to Poland. 

SEE ALSO: 'Weak Hero Class 2' is off to a strong start, ranking number 1 as the most anticipated series

During their travels, the kids split up into the older children team and the younger children team, with Samuel Kim, Hwang Sung Jae, and Lee Si Heon grouping into the older team. The older team members took a seat on an outdoor bench while waiting for the younger team to contact them, but then Samuel suddenly cried out, "Wait, wait, wait, on my knee!"

It turned out, a spider had decided to pay a visit to Samuel Kim's knee, and while Lee Si Heon screeched and shied away, Hwang Sung Jae fumbled for an object to slap the insect away. Samuel then yelled, "Przepraszam!", as the spider seemingly got away. 

When the studio cast members asked what "Przepraszam" meant, Samuel Kim explained that it meant "Excuse me", and that he said it on the spot habitually, because he kept using the term during his trip. 

You can check out Samuel's encounter with the spider above, as well as his adorable moments with his mother in the studio, below.