On the ball
Cut somebody some slack
Better late than never
It's raining cats and dogs
Call it a day
Break a leg
I'm under the weather
Hit the sack
Miss the boat
Hang in there
Good luck
Doing a good job
Stop working on something
Better to arrive late than not to come at all
Don't give up
It's too late
Don't be so critical
Go to sleep
It's raining hard
I'm sick