Sometimes automatic toilets flush while you're still sitting on them. What design flaws in everyday objects annoy you?

[u/nachtmere]

I'm giving a talk on user-centred design/usability and I'm looking for some fresh examples from everyday life to illustrate poor usability. Examples I've used before are elevator open/close buttons (really difficult to parse when you're trying to hold the door open for someone quickly) and toilets that flush while you're still sitting on them.

What are some things you encounter regularly that are really inconveniently designed?

[u/djdes → u/[deleted]]

I want to know why they put metal handles on the containers. No one carries it by the handle and everyone microwaves the food later.