"When I say 0900 I mean we start at 0900. That means that you should be there at 0858 at the latest. If you want to chat with someone, or get comfortable, make yourself a cup of tea or some other task, you get there at 0845. If I wanted to start at 0905, then I would have written 0905 on the call sheet. And I don't care if you are the director, you agreed to 0900, so you should at least have the decency to turn up on time. And if you are going to be late due to traffic or some other disaster, I have a mobile phone, and you have my number."
As one can guess from the rather rant-ish "thing I would say" I am a bit annoyed at late people at the moment. My cast of 15 (plus director) were ALL late today. And not just 1 or 2 minutes late.... the first person to come in was 5 minutes late and had the audacity to say "Oh, great, I'm not late" - I had been there since 0530 (Which naturally puts me in a bad mood anyway - because NO ONE should be up at that time of the morning) and was exhausted already by the time they were meant to start - and I knew I would be there till late (I just got home and it is now 0230 the next morning) so grrrr... If I was going to say one thing to actors at the moment, it would be "BE ON TIME!"