<human>: Give me a shortened version of the text

So, I live in a house of six and we recently (end of July) had a housemate break the lease and move out. When she took the last of her things, she said anything that was left behind she didn't want. 

She owed us ~$100 in her share of utilities but ignored all of our texts, phone calls, facebook messages, etc when we tried to let her know. It finally came down to one of us posting on her fb wall that we wanted to tie up loose ends with those bills with us and she flat out refused and said that when she moved out she absolved herself of responsibility for those bills. 

So my super frustrated housemates decided to take a few of the items (old AC, broken TV, random electronics) she had left behind outside and smash them to relieve stress/anger/whatever since they were soon to be thrown away anyway. One of the housemates took a short clip of a sledgehammer smash and posted it on Instagram. And apparently it made her way back to her even though she had everyone in the house blocked. 

I guess in the video it was her modem that she had been renting from Charter Spectrum being smashed. So she is now threatening to sue us if she gets charged with a replacememt fee. 

Obviously the person who posted the video feels stupid and it was stupid, but we are all a bunch of dumbass college kids.
<bot>: Can my ex housemate sue us for throwing away/breaking things that she left behind? (Assuming the modem is in her name under Charter and she will be charged a replacement fee for not returning it?)