Ah-ha-ha-heh... I originally meant to make this a "girl with big gun" linking,
but then I thought to add the super-evident caveat of "+ tvtropes",
and this is what I came away with...
Girl With Psycho Weapon (
Let's see how long this trope-finding-and-linking can last...)
In an infamous scene
click to show
...
from a chapter of Azumanga Daioh, Osaka thought she'd wake up Yukari-sensei by banging on a frying pan, but since she was half-asleep herself at the time, she took a knife out of the cupboard instead, with the result that Yukari woke up to see a groggy-eyed, knife-wielding Osaka standing in the bedroom doorway.Yukari: W-what?
Osaka: Oh, you're awake? I screwed up.
*
visual context (warning: very funny)