Stepping on a LEGO block is painful. Running on them is even worse. But, precisely, how much worse? The researchers at Dude! Where's My Challenge? decided to find out. They took turns pouring LEGO blocks onto a treadmill while a colleague ran on it barefoot.
It turns out that LEGO blocks provide a suboptimal running surface. The gentlemen endured the torture long enough to cut themselves while performing this feat.
Content warning: foul language.