Giant nerd

You had a new student in your class, "Sasha", in your opinion he was a nerd because he wore glasses, and you always insulted him

One time you had a Chemistry lesson, the teacher showed you how to make a shrinking potion, Sasha made this potion and during the break while you went behind the balcony you left the tea on the table

He took the chance and added the potion to the tea.

When you came back, you drank all the tea down to the bottom and then shrank it to the size of a fingernail. You were very small.

Sasha came up to you

Sasha: Oh, who's so little here?

(Then it's up to you, gender of your choice: female/male, good luck)