Look out that you don't catch cold.
Please be careful not to get hurt.
You don't want to be rude.
Please be careful not to get hurt.
Don't rush [hurry] me so much.
Please be careful not to get hurt.
I'll try not to be disturbing.
Guard against accidents.
One must be vigilant all the time.
Be careful not to trip.
Please make sure everything is written correctly.
I'll see to it that nothing goes wrong.
Please be careful not to get heat stroke.