4 causes of daily frustration

I recently published on everything UX's Spanish sister site, todofluye.tumblr.com these 4 everyday objects that are a cause of frustration in my day-to-day life.

1. The first item are the doors at the entrance to the Madrid underground
   In general the Metro de Madrid trains run very well and the system is kept clean and prices low. However, the doors are extremely heavy and I don't know how people with their hands full or who are physically slight manage!
   
   Ironically, a few months ago, these blue stickers appeared on some doors claiming they were easy to open; a clear sign that their poor usability is at least recognized by those responsible.
   
   I seriously wonder if this is a half-started project or a just bad joke; there's nothing easy about opening these doors. The technique required is the same as with the rest of the doors, if someone ahead of you opens one, let the door swing, make the most of the momentum and open it in the opposite direction. If you try and sneak through after someone else, you'll just end up trapped by it (no joke!).
   
   No evidence of user-centred design here.
   
   
   
2. The office water cooler
   This machine not only often refuses to pour water, (you have to shake the whole machine to get rid of the trapped air), but it also has a mystery, red emergency button. None of us can fathom out what this button is for!
   
   An example of the need for designing a product that does it's main function very well, leaving secondary options hidden, though intuitive.
   
   
   
3. A laptop keyboard with the Function button sitting in the place of the Control button
   This is extremely frustrating when using - or trying to use - keyboard shortcuts. I often end up thinking I've copied some text only to find that I'm typing vvvv instead of pasting!
   
   A good reason for following standards!
   
   
   
4. The false checkbox of a pop up window from an antivirus with a trial period
   Q. How can I get rid of this pop up window at start up?
   A. I either have to buy the product, or uninstall the antivirus and download a new one.
   
   Fair enough, but the false checkbox which cannot be selected - despite its appearance - and the text "Check box to not see this message anymore" has tricked me at least a dozen times into trying to select it!
   
   Annoying someone into buying your product is not a great user experience!