I have plenty but one specific incident happened the first time I was ever called for Jury Duty and I mean full on, not just summoned. I was about 19 or so and not only did I have yo GO but I had to drive to the neighboring city which was already a fear of mine (freeways/long drives). So I get there and it's in a huge cement basement, like we had to line up and go down stairs for a hot minute and I kid you not guys, the second I got in that line I get a text from my sister saying "bills late, our phones are about to shut off" awesome. So I'm waiting in this room with nothing to distract me from my own mind and then this loud white girl (I'm also white but she was trying real hard not to be) comes up and it's some chick I had met one time prior to that but she wouldn't leave me alone. I waited 3 hours for my name to be called, I go and sit in a theater style row all the way at the end opposite to the exit if course and await my number being called. This is when people give their reason for not being able to stay and my dumbass was too scared to lie and just say i had a job and last second after the judge made me stand and repeat my name louder (fuck) I just took the option where you speak to the judge in private. I then had to panic my way down the row shaking all over everyone's lap and go in the designated room. 
It's not just the judge, it's also both sides of the defense and prosecutor, the typing woman whatever the hell it's called, and a few police officers. 
This is where I absolutely lost it, every bit of anxiety I had pent up came out in an absolutely chaotic way. I frantically slammed into the chair and immediately started crying, hard crying, while simultaneously blurting out nonesense but basically "I have really bad anxiety and I just can't do this I can't I'm so sorry" everyone looked very startled yet suspicious because no doubt I looked like I just snorted ketamine. The judge says he couldn't have someone unable to public speak as a jury and dismissed me. I got walked out by two cops, one of which had got me a cup of much needed water and then I just sat outside, so worked and so embarrassed. I also felt too nervous to drive but couldn't call for support so yeah. 

What's yours?