lol it is wee lol we have three syrians and when they go in the balls pumpkin wees all the time and it is very smelly, almost like a territorial thing. Just make sure you wash the ball out because it can get verrrry smelly!
If he is smelly in the cage try potty train him, we trained pumpkin to go in a jar so we can wash it out every few days
ps. Indy is a great name lol although he will have to be Indy Jr on hamycentral
hehe (see my indy in my avatar!)