Cake Baking, Take 2

I've had a terrible time trying to bake a cake today.  Everything was going well until I got into a muddle with the KitchenAid.   I confused the lever which starts the mixer with the lever that lowers the paddle into the mixing bowl.  I think there is still some cake batter on the ceiling.  

Then I used the wrong size baking tin and this is what happened while the cake was in the oven..

I thought, 'I can salvage this' but no.  When I took the cake out of the oven it fell flatter than a pancake.  It was completely hollow inside!  Well, I am not a woman easily defeated!

If first you don't succeed, bake a different recipe!