my rat is urinating on me

Question
When she's crawling around she frequently urinates on my hand or arm, it seems like she does it on purpose too. Is there any explanation to this and she does it to other people, not just me.

Answer
She loves you! Rats dribble/mark on their owners to show love/affection; it's their way of marking their territory. So.. good news is that your rat really cares about you. Bad news is, if you want to keep it that way, there's no way to stop it from happening.