What we have here appears to be a guy shooting out a stream of fire as he goes to the bathroom. I'm going to go out on a limb, and say it has to be a hoax. Either the flames have been photoshopped in (which is easy enough to do), or he's holding something concealed in his hand (such as a bottle of lighter fluid), and that's what is really shooting out the stream of fire. The fiery liquid also doesn't appear to be spreading across the floor, as one would expect it to do