Hi! It's the OP. The blister formed earlier in the day because of a new pair of running shoes I was breaking in. The blister didn't seem too bad, but it got filled up as the day progressed. As I got into the car, it burst. I never let on because my shoes were not open-toes. The date was great, we went to Pizza Hut, but I got tomato sauce on my outfit. I'm a klutz FML This was in 1990. I was too nervous to run back up to my barracks and do something about the blister. I was 19 at the time.