You can use this one only if your late for the first class of the day: I got stuck behind a train, what idiot schedules trains to go through towns at rush hour?
My dad ate my homework! That one should get you out of any assignment
Not unless your teacher knows that your father is a skinny bloke. They don't just eat papers off tables like the fat ones do. I guess that's a bittersweet way of looking at it.
Late: I was on my way to school and a truck hit me, so I was sent to the hospital to be checked up. After I was released a few hours later, I noticed I was feeling a bit queasy, so I went back for another checkup. Turns out that the driver of the truck actually coughed on me once or twice while helping me up and I got AH1N1 from him. The doctors suggested I stay in the hospital, but being the loyal student that I am, I went back to school a few hours after midnight.
Absent: I had sore eyes. [In our school, if you had sore eyes you would immediately go home. Actually, lots of people fake it by scratching their eyes then going to the school clinic to be sent home.]