When your wife gives you that look like you did something wrong, you start hitting ESC ever so carefully to not draw attention, then you realize alt+f4 doesn't even work. Or worse yet, you do this without a keyboard in front of you. Did you see the video where the wife or GF tries to have a serious talk with the guy and he grabs her hand accross the table and it looks romantic until he starts double clicking and pounding her hand on the table.
When you try pressing control+f while reading a newspaper to find what you're looking for. I actually wish this were possible