Volume 1, Book 4, Number 225:
Narrated Hudhaifa’:
The Prophet and I walked till we reached the dumps of some people. He stood, as any one of you stands, behind a wall and urinated. I went away, but he beckoned me to come. So I approached him and stood near his back till he finished. http://www.usc.edu/dept/MSA/fundamentals/hadithsunnah/bukhari/004.sbt.html
Books like this ridicule Islam every where.
The Qur’an in Al-Ahzaab 33: 21 says that the Prophet is an excellent example [to follow]
so I guess ummah can urinate while standing up like animals.