I didn't have to stuff my bra, but I had a whole 'nother set of problems. I didn't realize I was developing so much earlier than everyone else until one day in 4th grade. I wore a somewhat loose tank top, and I made the mistake of raising my hand to answer a question...I ended up unknowingly flashing a buch of classmates, and getting sent to the office so my grandma could bring a change of clothes. So EMBARASSING! But hey..at least I got a training bra out of it....
See? Stuffing was the least of my problems!