I've leaked once- while I was testing for my green belt nonetheless! It was so embarrassing! The head instructor called me over (I didn't realize it yet) and some lady told me about it- AGH! My advice is to change pads/tampons halfway through class- haven't had a leak since.
Has anyone here ever heard of Hapmudo? This might seem like a dumb question, but is it in any way related to Hapkido? If so, what's different between the two?