chuck is 8 mo old, and I got him neutered when he was 6 1/2 mo. He never marked indoors or outdoors, never lifted his leg.
He now has a little brother who's almost 4 mo, they have been living together for 6 weeks now but there has been no marking (knock on wood

) And they're both pee pad trained. Well, let's say we're still working on it with little Apple

I've had both female and male dogs and males are definitely my favourite