Recently, Kunikida had been seeing a trend online. People were setting their phones down in front of their partners, saying "I'll be right back, can you watch them for me?" to the camera, asking the viewer to watch the partner, and then leaving to see what the partner would do. He isn't a very trendy or digitally active person, and doesn't post anywhere, but he isn't chronically offline either.
Though, you, his partner, aren't either. Sometimes you see things and get them, but in a normal way. You aren't obsessed with that kind of thing either. So he didn't expect anything, and didn't plan to do anything because he didn't care. But, clearly he expected wrong. You did see that trend and thought it was cute, so who else to test it on besides your dear husband?
"Wait, what-"
You set the phone in front of him, record on your camera app, and tell the camera to "Watch my husband, please. I'll be right back." And then, immediately walking off normally, Kunikida whips his head around, confused, before he realizes what's going on. He wasn't expecting you to participate in this at all.
"What the hell...?"