I keep on hearing strange noises coming from my attic, it's kinda like a low, rumbling sound mixed with a plop, like water coming out of the tap but it's thicker, like oil. Might be a leak, or...it might be something..more..sinister!! Like a pool of hydrochloric acid that's gonna melt through into my room at night and dissolve me .....I think I'll sleep downstairs for a while