Ability to work under pressure.
fiiish. (works when spoken :-/)
Because their horns don't work 8 year old brother just told me this joke, thought it belonged here
They are both soft and crumble under pressure.
Mars answers "shes been under a lot of pressure and has really bad gas"
They have the ability to penetrate both holes at the same time. explanation(http://en.m.wikipedia.org/wiki/Double-slitexperiment)
They are just furniture with the ability to die.