We recently got a one year old Havanese from a breeder; formerly he was a show dog and lived primarily in a barn/kennel. He so far has no interest in interacting with our six year old son and doesnt want to or know how to play in any of the typical ways with anyone in the household: fetch, tug of war, etc. He's been with us 5 days. Otherwise he is friendly and easygoing, albeit a bit skittish about unfamiliar things -- which seem to be a lot of things inside the house. We want to know if he will learn over time how to play or if this is something he should have learned earlier in life and may not get into now (regardless of what we try with him). Any advice or opinions?