Programming mugs | I Am Not Working Because It's Rendering mug
If you work in 3 dimensions, and don't have a truly epic server farm to offload your rendering jobs to, it may be that rendering of your work actually takes some of your time. The rendering may even stop you from being able to work...
In this case, you have two options, experiment with the 4th dimension (time) and shift things around such that you can work anyway. Or, buy this IT mug that will inform your co-workers of your dilemma and your impending need for a huge awesome rendering server.
The pains of rendering delays described right here on your own computing mug.