A little help with the AKG Q701 please.

I would use the search function but my internet crashes every time I try and use it. I think its due to my slow internet. I'm deployed overseas so please bear with me, thanks.

Anyways, I just recently purchased the AKG Q701s. I like the headphones. They sound way better then any other set of headphones I have ever owned. Granted these are also my first pair of high dollar cans. I bought them with the intentions of listening to them while riding around in helicopters, planes, using them in my room, at work, just anywhere and every where. My only problem with them is that they leak really bad. I had read the reviews and figured they would leak a little bit, no big deal. I don't like my music really loud, I normally use a loudness in the middle and the people in the room with me can still hear everything I'm listening to word for word. I can't tell but they say its annoying and that they don't want me to use them at work. Is this a common issue with them or just mine. I expected them to leak, just not like this. Thanks in advance.

I've used noise canceling a little bit, but I just feel weird not being able to really hear anything really loud thats going on around me or someone yelling something at me. We do have aviation head sets that are pretty decent with noise canceling that you can plug into the helicopter and also plug in an outside music source and switch back and fourth from, I just ordered some. I'm looking for a set of head phones I can use everywhere without annoying the people around me. I feel rude. What would be some good closed back headphones? I'm still keeping the AKGs , but I'd like to find a pair that I'm really the only one who can hear them. Thanks for the input.