We have a trash can in our kitchen with an electronic flip-top and a motion/light sensor. You lean in to throw something away and the trash can, in theory, “sees” you coming and opens it’s trash can mouth to eat your trash.

Problem is, it doesn’t always register that I’m there, so I have to move my hand over the sensor a couple of times to get it to open. If I’m holding something particularly gross, or dripping, or doing other icky things that trash tends to do, this can be a pain.

More to the point, though, I realized I spend several minutes every day convincing a trash can that I exist.

Weird.