What's been your most urgent experience while unprotected in public?
A few years ago after suffering a minor back injury, I went through a phase similar to urge IC. It was thankfully only temporary, but I would get the urge to pee, and would have to go immediately.
One day on my one and a half hour drive home from work I got the urge to go. Pulled of the freeway early, found a spot to park and got out of my car. Problem was I dribbled a bit as I got out, leaving me with a wet spot on my shorts. The next day I was stopped at the lights, nearly home, and the urge was there again. This time I actually wet myself at the lights. Now while I enjoy wetting, I hadn't wet uncontrollably since childhood.
A couple of days later, I stopped at a friends place after work and had a couple of light beers. After leaving his place the urge hit again. Problem was, I had to stop at the shop on the way home.
I stopped, and ran barefoot into the shop for a quick stock up on some essentials. Once I started walking in the cold tiles, my urgency increased ten fold. I remember standing in the checkout line and trying not to do an obvious potty dance or hold myself. As I was being served, it felt like it was too late, and I honestly thought I had started leaking then, but thankfully I hadnt. I walked out, went to the bathroom but it was locked, as the store was shutting.
So back to the car. Put the shopping in and finally got to cross my legs and bend over a bit. The urge subsided, and I got in and started the car. It was like my bladder muscles were tired, and sitting down was a relief.
I started the car and pulled out into the road. Suddenly I feel warm and wet. I had actually started peeing with absolutely no feeling whatsoever. I couldn't stop, and finished up soaking my shorts and the seat. It was freaky, as I had lost any control at all, and just could not stop.
I'm just glad it was in the car and not one minute earlier in the check out line!