Ive only pissed myself one time, and it was at the gay prom (called second chance prom) and i was with my boyfriend and i had to walk over to him and tell him i pissed myself and we had to leave, it was kinda funny actually.
but i use the travelmate stp now and it works great, and i dont have to use 2 hands the whole time, you just need to hold it with your dominant hand, and then with your other hand scope out the area and use your fingers to create the seal around the urethera, once thats done u can hold it with the dominant hand