Xavier's never been afraid of anything, up until this point... Today at my sister's house, he…

Xavier's never been afraid of anything, up until this point... Today at my sister's house, he freaked TF out when her dog came near him. We've got a Teacup Chihuahua, so our 4 pound dog barely counts as an actual dog lol... He's never been afraid of my uncle's shih tzus either... Not exactly sure what kind of dog it is, but it wasn't ​a big dog at all... Looked like a bulldog mix or Boston terrier mix... I've never seen Zay act like that. So weird.....