why do we shudder when we pee.

Indonesia
@cintoy (1014)
March 3, 2010 5:15am CST
does anyone knows why do we shudder when we pee? i always love to post questions that i feel curious about and asks all your opinions. However, i am finding my own research in the internet as well. don't you think it can improve our own knowledge? LOL anyway, back to topic, i don't know if it applies to ladies, but we, gents most of the time shudder when we pee. It's not everytime, but most of the time. or incase i am wrong, does any gents never shudder when they pee? share your thoughts here