Hi! My little yorkie Buffalo is 14 weeks old now and about 3.5 pounds. I am going out of town to Maryland soon and at first i made reservations for Buffalo to stay at a boarding place. However, now he will be watched by one of my friends, saving me 100 dollars and he will socialize with her dog. The thing is, my friends dog is a puggle and she is a solid 40 pounds of muscle. Should i be concerned? They have met but buffalo just rolled over on his back and put his paws up like in a surrender. He is not used to having other dogs around. Any advice? Did i make the right decision?