I have no idea how a hand dryer can get this nasty. It's like no one has cleaned it for years. When the air blows, that black little snotty bit on the bottom right flaps in the wind.
It's as if the aliens from Alien dried their hands in there.
The best part is, when I showed it on Twitter, people actually recognised WHICH toilet it came from, just from the photo. It's the Tanjong Pagar MRT toilet.
SMRT, you may want to clean that mess up.