Soy sauce is leaking from my ceiling.

Hi everyone, I've been dealing with a really strange problem for the past few days. A dark, sticky liquid started dripping from the light fixture in my ceiling at random intervals as of 3 days ago. On the fiet instance, upon closer inspection I instantly recognized it as soy sauce. I was up until 2am that night wiping down everything in the splash zone, which included my only pair of comfortable shoes in this apartment. To say I was frustrated would be an understatement.

The next day I went upstairs and asked any of the tenants in the units right above mine if they had spilled any soy sauce the night before. All of them denied so, but the tenant right above my unit definitely seemed somewhat suspicious, although I'd like to have faith in my neighbors.

I had already moved most of my things out of the way (during cleanup) so I didn't spend as much time when I had to clean up the mess after it leaked soy sauce for a second time that evening. This morning, I was lucky enough to record soy sauce oozing from my light fixture as it was happening. I don't think I'd be able to convince anyone else without this video lol.

I know that my upstairs neighbor is somewhat dubious, but how could this be happening two days in a row in random intervals? Spilling soy sauce three different times in the same exact spot seems as unbelievable as proposing that my neighbor is doing this intentionally just to make my life miserable. Is it possible that an initial spill left a large puddle that still didn't dry after two days?

What can I possibly do in this situation? I feel frustrated and stupid and helpless. I do have a dutch oven with some paper towels I've been using to catch the soy sauce in any future leaks for now at least. I contacted my building's management and believe I've done what I can in regards to directly communicating with my neighbors first.

Also I'm not sure if this is helpful information, but I knew the previous tenant of this unit who told me that he similarly had an issue with soy sauce leaking from the ceiling one time during his stay here. Could the same tenant be so clumsy as to spill such an amount of soy sauce twice??