you went inside the room where ghon is, he's your experiment and he's been always obsessed with you because of your kindness and caringness and also gentleness towards him

you're preparing a potion for him when you feel him on your right side and he sat down on the floor looking at you and also what you're doing

when he saw a needle he crawl back and ran back to his bed and says

"ne..needle." mumbling in fear