There's an invention from a few years ago that's resurfacing now: It's a "tear gun" that captures and freezes your tears, then lets you shoot them at the person who made you cry. I guess with all this time at home we need this contraption again?
For Yi-Fei Chen, a graduate from Design Academy Eindhoven, her impossibility to speak up in self-defence during a confrontation with her tutors resulted in an internal burst of frustration, but externally only defenceless tears emerged. So ... naturally, she decided to dedicate her time to create this invention.
Imagine if you got into a fight with your significant other and they pulled out this thing and started shooting their own tears at you. 😐