It all started when the new city buses came out. They’re pretty comfortable and quiet, but one thing really bugs me about them. Whenever you use the back door, the door takes ages to open, in addition to an annoying voice telling you to “touch yellow tape to open door” every time the bus stops. I press the yellow tape and about 5 seconds later the door starts to open. I usually just shove the door open, because when I’m tired after a long day I have no patience at all.
How does this relate to web design? Simple, make your interfaces work quickly, don’t put any lag or delay. On certain websites you have to hover over a dropdown nav button for 3-5 seconds for the dropdown to appear. That’s really annoying, so don’t do it.