Well this place has rather weird entities so far... Sure wonder who else you're gonna stumble upon! It could be anything, to be honest, so you have low standards so far.

As you entered the room A-019, a crudely drawn red smiley face suddenly appeared infront of you, scaring you a bit. It seemed to be rather excited and happy. “Hiii!!! :D”

...and of course it was talking at such high volume, so you couldn't listen out for anyone else who might be coming...