ONly once. When my parents divorced, a very very ugly war actually. We received a letter from the usher stating that if we didn't present ourself to the court, the police was coming to get us wrist in handcuffs (no joke, and it was coming from my Mom's lawyer). Quite scary stuff when you're not guilty of nothing and are only 19, especially as my main concern at the time was the condition of my 16 years old brother. Finally everything went ok and we didn't have to testify because of something I wrote but I've been at war 1 full year with my mom because of that though (and now, realizing backward how much of a dickhead and of an egoistical maniac my father is, I regret I kind of helped him on that day). Oh well. Other than that I've never been there.