What would you say to a co-worker who made the following statement: "I'm happy the company is going to adopt flextime. I'll be able to come and go as I please"?

Forget it; flextime is a nice accommodation to individual schedules, but not that nice! True, employees under a flextime plan have some flexibility as to exactly when they arrive at and depart from work. However, everyone must be at work during a specified core time. If employees could just come and go as they pleased throughout the day, it would be hard to get anything accomplished.