I saw a talk show in the 80's maybe early 90's, sally jesse raphael i think. Anyways they had people on that could push their eyes out like that. For some reason black people can do it with much more frequency than others. They asked how they discovered it, one lady says she coughed one time and her eyes were stuck out her head. Another guy said he laughed really hard one time and boom. There was also someone on the show who would, get this, drink milk through a straw into their nose... then shoot the milk out their tearduct. It would spray a few inches.
Wtf.