@Sakuratea
I wouldn't doubt it can't happen
I mean, something like slurping noodles in public (Which are commonly known as being annoying & noisy) is considered good manners in Japan
There are some odd things that could have the different effect in Japan, it's kinda like how Americans say "Toe-may-toe" whilst British/Englishmen say "Toe-ma-toe"
あびせる https://ejje.weblio.jp/content/あびせる
One of the possible meanings for this is to be barraged by something, so he could be saying that he would be barraged by all these ghosts.
the ghosts probably don't know that they're visible to both of them yet
which means they're just watching them, waiting for them to hurry up and fuck without knowing that they're spoiling the mood