How do I tell my parents?

This isn’t about periods or anything but 3 weeks ago a rock fell off a truck and smashed my windshield, and they paid for that a week later. Then the same day I got it fixed, I got a flat tire that night. They paid for that as well. Now, two weeks later I recently got ANOTHER flat tire.🤦🏾‍♀️ I dont go anywhere but work and then home. How do I tell them about this one. ( Whats worse is that none of this was my doing) btw i am 16 and don’t make enough money to fix it.)