Theory:

BANG!
What's that?
Bang-Bang! Oh, Hark,
The guns are shooting in the dark!
Little guns and big ones too,
Bang–bang-bang!
What shall I do?
Mistress, Master, hear me yelp,
I'm out-of-doors, I want your help.
Let me in-oh, LET ME IN
Before those fireworks begin
To shoot again-I can't bear that;
My tail is down, my ears are flat,
I'm trembling here outside the door,
Oh, don't you love me anymore?
 
BANG!
I think I'll die with fright
Unless you let me in to-night.
(Shall we let him in, children?)
Ah, now the door is opened wide,
I'm rushing through, I'm safe inside,
The lights are on, it's warm
and grand-
Mistress, let me lick your hand
Before I slip behind the couch.
There I'll hide myself and crouch
In safety till the BANGS are done-
Then to my kennel I will run
And guard you safely all the night
Because you understood my fright.

                                -- by Enid Blyton.
Reference:
State Council of Educational Research and Training (2019). Term-1 English Standard-8. Firework Night(pp. 141-144). Published by the Tamil Nadu Textbook and Educational Services Corporation.