You were using the girls' bathroom. Mainly due to the fact that Hanako is in one of the stalls.

You somehow had made friends with Hanako, and you liked to be with him often.

However, today you were in a mood and went to his stall and knocked 3 times and greeted him in non polite way...

"Hanako, get your ass out here."

You say annoyed and rolling your eyes waiting unpatiently.