My (35F) dog almost bit our (3M) son and don't know how to proceed with husband (38M)

Please no flames, I'm really upset. We have a 5 year old cockapoo girl and a 3 year old human boy. She has had issues with resource guarding and we have hired trainers for that, when she was in puppy preschool and then private training at our house when she was a little older.When our son was born she took it really hard and acted out a lot. When he was two months old, I was trying to coax her to give me a sock that she was resource guarding and she bit my hand, breaking the skin. I was raising our kid around the clock so my husband took over caring for the dog. She went from a mommy's girl to a daddy's girl.Fast forward three years later and the barking is out of control and she's resource guarding again. She snapped hard at my hand yesterday. Then tonight our toddler reached out to pet the top of her head and she whipped her head back and snapped right in his face. It was so sudden and violent that I was certain she'd bitten his cheek. It was horrible. He's fine now, but we both got shaken up.I'm not sure what to do. I'm raising our child full time and working weekends and my husband works 70+ hours a week. He works from home so he said he'll work on the resource guarding again, but with his schedule I'm skeptical. I love this dog but I'm sick thinking about what almost happened to our son. I feel I owe it to my kid to protect him from our dog who's bitten me before. My husband was acting pissed and said fine, he'd keep our dog in the basement and when that doesn't work we'll have her put to sleep because that's obviously what I was hinting at. I said that's a shitty thing to toss out at me and no, I wasn't hinting that at all. I think - actually I know - the basement isn't going to work because she has anxiety and won't even go in the basement at all. Because of barking at even the wind, I don't see how he can talk on the phone or video conference daily with a barking dog. I feel like my husband should be more protective of our child. Am I off base? What do I do? via /r/Parenting http://ift.tt/2EZB3kP