It is a truth universally acknowledged among parents of kids who like Nutella: the stuff is addictive.
Now, a German designer has invented a "Nutella Lock" to keep unwanted pilfering hands out of the jar: and has already sold a thousand units on eBay. According to the U.K.'s Daily Mail, Daniel Schlobloch originally invented the customized lock as a joke because a friend's children were always stealing from his jar of the sweet hazelnut spread.
It's now selling for 9.99 euros ($11.25) on eBay Germany. The lock is made of acrylic and comes with two keys. Although, as the Mail points out, it "should not be considered as a proper security device however as acrylic is easy to break into."
Nutella, which is owned by Italian company Ferrero, has yet to respond; however in 2013, the brand gave in to pressure from fans to hold a "World Nutella Day" despite initially sending the day's founder a cease and desist letter.