We have seen some pretty crazy things before on geeky gadgets, but this might just be the craziest yet, a German man called Dirk Auer decided it would be a good idea to roller skate down a roller coaster track wearing a pair of customized inline skates.

Dirk reached speeds of up to 56 MPH whilst skating down the roller coaster, check out the video of him in action below.

I have to admit this is pretty cool, Dirk performed the crazy skating at Trips Dill theme park in Stuttgart Germany, and as you can see from the video it certainly looks very dangerous.

Daily Mail via Dvice