You should be, especially if you aren’t faculty or a student in the math and computer science program at Technische Universität München (which was ranked 56th best university in the world in 2010), where this double slide can be found.
According to Redditor null8fuffzehn, “the tubes seem to be parabolic (and are called the parables), but aren’t. They are composed of several parts, each of which is a segment of a circle of different radius. The manufacturer only could do circles.” He/she has an office on the first floor of this building.
We’ll update once we learn what Germans shout when going down a slide this awesome. [via reddit]