I don't feel comfortable leaving my son in his uncle's care

On mobile and maybe slightly buzzed. Trying to gather my thoughts, please bear with me.My husband has two brothers and a sister, the younger brother and older sister we don't really speak to. I don't really associate with his family anymore, but that's another story. He does, but mutually we speak to his mother, grandparents, and older brother.So, his dad is throwing a party tomorrow. His older brother offered to take our son out early since husband works until 6. My husband asked how I feel about it, and I said we'd talk about it in a bit.Here's the thing, while I don't dislike this brother -- there's something that makes me uncomfortable. I can't really say what. He shows a lot of interest in our son from afar (even offered to take him school shopping and pay), but never with either of us around? Like, he has his own teen boy, a couple of pre-teens (who the younger brother is now the step-father...again, this is complicated). But there's this weird, constant, "I love that little guy!" and eagerness to spend alone time.This might make no sense. Something just feels off, as innocent as it may seem. I don't want our son alone with his uncle. I can't really put why into words, but I have to attempt to tell my husband this. Am I crazy?Edit: I was stressing over nothing. Just came out and said it, and he said that was all I had to say. He's on my side, whew! via /r/Parenting https://ift.tt/2P8SIIr