Since you have little kids, I would go back to the pound and tell them it isn't working out, and the dog probably needs to be placed with someone more experienced or without children.
The longer you keep the dog, the harder it will be on everyone. And it can be dangerous too.
Jenna, RN CGC & Babs, CD RA CGC HIC
Heidi, RA CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear CGC