If you have 1 out of 10 change it doesn't mean that after 9 times no drop you'll get one the 10th. For example, tossing a coin has 1/2th change of landing on head right? If you toss a coin 20 times I almost want to bet it doesn't come out on 10 head 10 tails :-w ( my math teacher actually did this in class, very funny convo's :lol: )