We have a school project where we're supposed to develop a project for a company. In order to finish the project before our presentation I put in over 40h per week (on top of other classes). The only thing missing is the design, only placeholder buttons at the moment. Ask the designer 2 weeks in advance if he'll be able to provide me with the design: "Sure, I'll do it soon".

And now the presentation is in one day and the app looks like shit because we don't have any design for it.