Running the test suite like this allows us to catch problems when they are just introduced.
I hardly ever watch my own work. I just end up picking myself apart! I can't even stand to hear myself on voicemail. the sound of my own voice is like nails on a chalkboard. The same goes for my records.
You know, you can touch a stick of dynamite, but if you touch a venomous snake it'll turn around and bite you and kill you so fast it's not even funny.

