Wow, I believe you most definitely shouldn't have to pay, but come on, it's your sister! If you two are really close or get along well, I would still spend a day helping her out or so.

She's lucky you didn't call the police for trespassing before you went downstairs! Police don't typically have a sense of humor about pranks that take up police time and resources. Frankly, she deserved it. My family plays pranks, but this one would be considered over the line. You have no reason to pay for her stupidity.

I wouldve done the same by hitting her, but owww that'd hurt

I would have done the same thing. Honestly I am just glad it was a baseball bat and. It something that could have done more permeate damage.

if you owned a gun, that could've been a while different story.

I too, like to pull pranks on people, making them think they're being victims of a criminal and expect everything will be perfectly fine. What could possibly go wrong right ? It's not like i'm doing something illegal as a prank.

If your choice weapon for self defence was a gun there would be no hospital bills, only funeral expenses. And it just as well could be actual robbery if your sister is secretly on drugs or some other shit that requires tons of money. So easy to say it was a prank if it didn't go as intended.

She's lucky you didn't have a gun your family didn't know about. Absolutely Not, you are NOT responsible for the medical bills for her being stupid. In my house it would have been an extremely sharp knife and she probably would have died. If someone breaks into my home where my children are, I assume they mean us harm and will prevent that.

Don't pay a dime! **** her & the rest of your family too! Time heals all wounds, not ur check book. Sorry OP that ur family seems to be trying to guilt you into paying for their fucktardation.

I hope youre taken to court so the judge can tell them how dumb they are