I have done a lot
USMC
MP
SWAT
Martial Arts
MMA
Sky dive
Bungee jump
Scuba
Marathon
you name it
I have never thought of any of these as hard though just saw them as things I had to do
I will say this though... starving to get super shredded does suck and is very hard so to me, people who compete in BB have it super tough I would do the bb thing, but I do not like the thought of being in a g string with a bunch of horny males judging me