[Mystify79]

I hear that boys still hump after they are neutered, is that true? - I have a 17 month old neutered male Maltese and he still humps.. but he only humps one specific toy, he leaves everything and everyone else alone.

Are they harder to potty train? - Mine wasn't hard to train at all.. in fact he was pee pad trained in a just a few days and was 100% in a few weeks. My female has been a nightmare to potty train.. it's been over a month that I've had her (plus the several months the breeder had her) and she still doesn't get it.

Do they mark their territory outside or inside? And can it be a problem? - Tuffy only will mark if another dog has peed on a spot. He actually didn't start marking until after he was neutered which was weird. I have to use a belly band when we are at someone else's house, especially if they have dogs. For the most part he has never marked at our house.. only twice and I think it was due to bringing in our second dog. Tuffy doesn't lift his leg to potty unless he's marking so if I see that leg go up in the air I give him a stern warning. It's really not a problem for me, I guess I've gotten used to watching him when we are out and about, but in the house it's not a problem at all.

Is humping be a habit or just a stage? - I don't think it's just a stage.. he humped as a puppy and humps as an adult. The key is to train them not to do it. My female Yorkie humps too, so humping isn't gender specific and I've heard females mark too.