Don't drive clapped-out Mavericks. They prefer BMWs, Lincolns or pick-up trucks with floor shifts. Fast motorcycles are highly regarded. Don't believe in schedules. Planners make up schedules.
Frightened coders strive to meet schedules.
Real programmers ignore schedules. Like vending machine popcorn. Coders pop it in the microwave oven. They can tell what job is running just by listening to the rate of popping. Know every nuance of every instruction and use them all in every real program.