Hi, thanks for the timely responses. Yes, she has had training but the training at home has been inconsistent. Also, our trainer had us using a shock collar so she couldn't run away.
As far as the biting/growling…it started about a year ago, occassionally...I would be holding her and people would approach and her hair would go up and she'd snap. Also, if she is lying with me on the couch or in bed (she isn't allowed to anymore) and someone approached they would be attacked, like a snake striking out of the blue. She has only growled at me and I have firmly held her down and won, she has never bitten me and interestingly enough, I don't fear her biting me. She now growls at strangers that approach her while we are walking. She is very loving and playful otherwise but this has escalated within the last six months.

Hi, thanks for the timely responses. Yes, she has had training but the training at home has been inconsistent. Also, our trainer had us using a shock collar so she couldn't run away.
As far as the biting/growling…it started about a year ago, occassionally...I would be holding her and people would approach and her hair would go up and she'd snap. Also, if she is lying with me on the couch or in bed (she isn't allowed to anymore) and someone approached they would be attacked, like a snake striking out of the blue. She has only growled at me and I have firmly held her down and won, she has never bitten me and interestingly enough, I don't fear her biting me. She now growls at strangers that approach her while we are walking. She is very loving and playful otherwise but this has escalated within the last six months.

My beautiful 3 year old F Basenji has gotten growly, has bitten and it is escalating. She has been trained to sit, stay, heel, but this is getting so bad my husband wants to give her up. Any advice? Please??? I love her sooo much but I don't want her to her another person.