Free cake!

After our 9am physics lecture this morning, my friends and I waited three hours for our maths (statics) lecture. We discovered that they were giving out free cupcakes when you bought tea or coffee at the café, so a few of us bought hot drinks just so we could get the cake! When we eventually had our maths lecture, we were bitterly disappointed that our lecture was about dot products and vector products of two vectors; things we know so well, it seems insulting to go over them again. I was so tempted to get up on the lecture tables and plank to stir things up a bit.