There was an expensive vase that I accidentally tipped over. I swept up the debris before my mom could see it.
I tipped a vase over accidentally and it broke.
user
That stinks. Did you hurt your foot?
assistant
No, but I had to sweep it up quickly before my mom found out. 
user
I read that wrong, I thought you said you tripped over a vase and it broke. Will you be in trouble if she finds out?
assistant
No
user