Male schnauzer behavior

Question
I purchased two schnauzers from same litter, and one constantly pees on his brother - what's up with this?  (He also has other behavior, such as if I pick him up, he growls at his brother if his brother is anywhere in sight, or growls at his brother if he himself does something stupid - like slips -  or hurts himself)

Answer
It's dominance-one thing you can do if he's not fixed,then getting him done(as well as the other brother)will help a lot,unless of course you plan on breeding them

He is trying to show his brother who is in charge,and once that is established,little to no fighting is done after that-but if he does become more aggressive towards the other dog,the best way to deal with it is to muzzle both dogs then let them sort it out,that way neither dogs will get hurt

And something else to look into is obedience classes for the dogs,esp the dominate one-it will put you in the alpha role instead of him,also trainers can help you with any problems you have along the way