Ruby4200

I thought long and hard about posting this or not, because it will look like I'm trolling or stupid, which I very well may be, but I swear to you I'm not making this up!

So this happened today. I was sitting on the toilet... doing my thing... when suddenly and out of nowhere I hear this very clear fart noise, for lack of a better term. And yeah I'm 100% sure it wasn't coming from me.

Immediately I was like "what the fuck?" It sort of sounded like a cartoonish fart, or like something you would hear in a comedy movie. And it sounded like it was coming from someone standing right next to me, but as you can imagine there was no one else in the bathroom. I live alone in a 2nd floor