Re: dojo frat boys
Irimi - "Wow, I really like the energy and the vigor you guys bring to practice...I notice that you tend to exclude some of the folks that might not be as physically gifted. Is there a way you could work us into your practice so we could benefit from some of your energy?"
Being young men they probably really enjoy the physicality of the workout and might be dense (like most young men) and they might not realize they are excluding others in their zeal for practice.
I think you might be surprised at the results if you spoke directly to one or two of the "Frat boys". after all Aikido is learning about how to take care of ourselves and others......Your labeling of them might also change once you really make an effort to talk to them.