I was late because I feel asleep in my car outside work because I got here so early and the doors were locked.
I was late because my dogs chewed the cord on my alarm clock and I overslept.
I was late because I drank waaaaaaaaayyy too much last night didn't want to drink and drive this morning.
I was late because I had an interview with a much better company this morning.
I was only late today because you weren't for once.
I was late because I got a memo our work schedule had changed.
I was late because I am always late, what's new?