<human>: My girlfriend and I saw/heard a couple across the street fighting and then witnessed the man run into the house, begin assaulting the woman, and slam the door. Knowing there was at least one small child over there, we called 911. The cops came and took our info and statements but said they would contact if they needed anything. Fast forward a few weeks and we get summoned to testify against him in court.

We only called 911 because we feared for the safety of the kid(s). Only later did we find out the guy is a rumored drug dealer on probation. We really don't want to shit where we eat and we certainly don't want to fuck with drug dealers. Still, we don't want someone like this living across the street from us so we'd like to help put him away if we can. The letters we got say that if we don't show up, we can be "punished," but is this really true? Do we have the right to refuse to testify or to state our demands, for example that we do not want him to see who we are?

Can you give me a shortened version of the text?
<bot>: Called 911 for domestic violence with children involved, now being subpoenaed to testify in court but don't want to put ourselves in danger. Do we HAVE to testify or can we do it anonymously?