Question: Has anything ever gone wrong when you have been teaching?

Grant Campbell answered on 13 Mar 2013:

Hi cupcakes! As I just wrote for someone else’s question, I teach about pressure (amongst other things), and I illustrate the concepts by blowing up balloons. The balloons are often a bit old, having sat in my bag for a few years, and my students enjoy it a lot when a balloon blows up in my face!