2-3 months old here and a fireball since day 1. Weimaraners are VERY loyal and play hard and protect hard. He's now as tall as the big dog Charlie but his sense of smell is 2nd only to a bloodhound. You cante tell at this age, but thats why certain dogs have those long ears that almost touch the ground, they help waft the smells on the ground up into their nose to help with tracking. You can run and you can hide, but just dont cut the cheese. Or else he'll find ya. Oh and he loves some kitty roccas in the morning. Its truly sickening and we try to prevent it. But must be like candy to him.