I was just watching a youtube video with a song from 'Trolls Holiday Special' & the first half of the video had 'normal volume as I usually choose' ( - that is 'not too loud' ) ...

... - but after a minute the volume changed itself! 😆

( Idk how - I didn't click Anything then ) 

& it suddenly got As Loud as if Someone Shouted at Me from The Screen! XDDD

- I didn't expect Anything Like That - So I got Scared! ( 😂 )

Lol