I got "pulled over" by a A-10 Warthog just after 9/11. I took off and a NOTAM (Notice to Airmen) was issued stating we were not to fly exactly where I went flying ( North of Croton's Point on the Hudson River) about 5 minutes after I departed. That A-10 was so loud, I thought my Piper Cherokee's engine was falling off. The pilot signaled me, I switched to UNICOM and he asked "What was my intention?". I stated my intention was "to do whatever he told me to do". He ordered me to go to 3000 feet at a heading of 90 degrees, due East, and after about 15 minutes, he told me I could continue VFR, as long as I did not go back to where I was. I had sweat marks down to my pants pockets, I just returned back to Danbury Airport and called it a day.
I thought, "Well, at least I'll have a neat story to tell someday", but knowing that massive Gatling gun/cannon was behind me, and I was a fingernail away from meeting my maker still brings no comfort has not left me with that "neat story" feeling!