rannnnnnnnt help

Okay so We bought a house in December and we haven't had any issues or issues that we knew of until I stayed home one day!!!! My  neighbors kids are always outside I really doubt they even go to school. When I stayed home I heard some basketball bouncing and talking near my house , so me being the nosey person that I am I looked outside and they teenagers  And their friends are in my damn driveway!!!! One laying down on my drive way and the rest in a circle playing basketball one of them shot the ball and hit my garage door like if it was a damn basketball hoop. I'm guessing they didn't think anyone was home since we only have one car , and my fiancé was at work. Today the same thing it was only about 4 teens this time , but still I am getting super annoyed. I was going to tell my fiancé to speak to the father, but I'm honestly thinking their dad and mom is a POS as well. I read somewhere that if someone gets hurt on my property that I will be liable for it. :( I'm not sure what to do any thoughts ? I really just want to go outside and start yelling like a maniac.