Cranky Flight Attendents... Scary Pilots

So as we stated earlier we went to my parents house for Christmas. When we were on our way home we had just landed in Chicago. People had started to undue their seat belts and the flight attendant came on and said, " Just so you know I can hear you unfastening your seat belts. It is a federal offense to deliberately disobey the Captain and/or flight attendants instructions." So we left the plane thinking 'chill out lady', but then as we were flying out of Chicago the Captain had the audacity to tell us "Sorry for the delay folks, but they are fixing a major part of the plane before take off and we need to do a ground spark to get one of the engines running and then as we pick up speed the other one will just start itself... but don't worry this is all very normal so just sit back and enjoy your flight. And oh... thank you for flying United. :)" I don't know why this guy thought this was a good idea because it sure freaked a lot of people out. The girl next to me was hugging her legs practically the whole flight and it didn't really give me much assurance. Tony sat there with his sweatshirt over his face (mainly to sleep and to just have darkness, but it did help me calm down his nerves) Anyway it wasn't a bad flight, but I just thought it was interesting.