Multi-tasking could lead to burnt cheesecake

I had been waiting for a return phone call.  I got it! I decided to finish my cheesecake brownies during the call and popped them in the oven. After hanging up, I realized the cheesecakes would be coming out of the oven at the same time as my appointment away from home. This multi-tasking took away more energy than it gave me. How bout you? Do you multi-task?