hangulmal arayo! (i understand korean!)

hallelujah! i understand this much korean! yay!
when i first moved into my apartment, i was frightened by the scary male voice coming over a megaphone early every morning that sounded to me something probably like:

"all foreigners stay in your houses! anyone found on the street will be hung by their toenails with the rest of the kim chi!"

or

"warning! warning! gas leak! get your gas masks everyone!"

or

"rabid kitten attack! beware all kitties!"

or

"your building is going to self destruct in 5 . . . 4 . . . 3 . . . 2 . . . "

this was very unnerving, as you can imagine.
eventually a korean friend of mine explained that really what was being said was:

"watermelons! get your watermelons! $5 watermelons!"

so then, though equally scary sounding, i understood what was going on and didn't feel the need to make the decision to either flee or stay in my apartment at 7 am.

then, this morning, i woke up to the sound of the fruit vendor guy on the street and i UNDERSTOOD what he was saying! oh it was so exciting!
something like:

"here! here are grapes! delicious grapes! $5 grapes!"
"here! here are oranges! delicious oranges! $4 oranges!"
"ladies and gentlemen thank you very much"

what struck me initially was that the voice no longer sounded menacing.
then i realized that it was because i understood what was being said.
it was amazing. it was the same voice, the same words, the same tone, but because i understood it, it no longer sounded scary.

i wonder if english sounds scary to people unfamiliar with any of the sounds.
i wonder if language sounds scary to all babies.