I have acquired...a small terrier/pug/chihuahua cross puppy.shes 4 and a half months old...I'm obviously doing something wrong as she is just weeing everywhere,today on the bottom floor stair.she also did a poo on ...ON my sofa...so if you have successfully toilet trained a small dog I would be glad of your pearls of wisdom..we got her at 8 weeks..small bladder small dog so been using puppy pads ,but she's not even using them more than 50% of the time.she bites a lot as well....teething so have given her plenty to chew on...she's got her own area in the kitchen ,with all day access to a large garden.still she comes in to wee...what can I do ? Or am I expecting too much from a 4 and a half month old....I never shout or do anything other than just clean up the mess.some advice says use puppy pads,some says don't...I'm confused..if I could just get this sorted by Christmas I'd be happy,so I'm not expecting instant miracles..any advice?