What's the weirdest place you've ever had a panic attack?

For me, it was many years ago, and I was just walking into the local grocery store, when all of a sudden, I felt I just had to get out of there. Now this store has white tile floors, is open and airy and could be in no way viewed as claustrophobic, but once I was about twenty feet inside the door, I just had to get out of there. I didn’t even care if people could tell I was freaking out. I nearly ran out the exit door, hurried to my truck, and crawled in behind the steering wheel, panting and dizzy and freaking out. Once I calmed down, I drove home and stayed indoors until my wife came home from work. when I told her why I hadn’t bought groceries, she was concerned and confused. Eventually I saw my doctor and was prescribed the right medication to control the damn things.