what’re some good excuses for not going to work?

i didn’t go to work today, i work at a daycare and the reason i didn’t go in is because i’ve unexpectedly had to go in 2 1/2 hours early this week, i’ve slept maybe 10 hours all week, the kids have been horrible and i didn’t have the strength to deal with them. so what are some better excuses? that i can get in trouble for 🙂