We girls may have an advantage in this area-
One of the versions I sometimes take after not getting off for some time, is to add a remote controlled egg, you know where, prior to really thick in the crotch double diapers. To make things even more interesting, I have added some glycerin suppositories after not taken my morning dump. Of course, I never go out feeling properly dressed without a really tight girdle, and this sets me up for a long day shopping in the mall.
As I get well into the afternoon, the bowel pressure building, an with a well soaked bottom by now, I will usually tease myself with the egg, on and off about every half hour, but not long enough to get relief.
Then when I am picking out a dress or skirt, and in a dressing room, I let the egg do its job, typically a knee bending occasion that most often also results in my loss of bowel control as well.
If a sales person is near by, this can be strange, and I quickly dress and leave making excuses about bad cramps and gas- In every case, making my way back out of the store, across the mall, and back to my car always draws lots of strange looks.
By the time I reach my car, the egg is going again, not the last time either as I hurry to get home.