WWYD if you saw an advert for a horse than you KNEW wasnt honest

[cptrayes]

Had this twice, once was with a perfectly nice horse, they'd just exaggerated (lied) about it's competition record, so not really putting anyone at risk. Another was "good to hack/load/shoe etc" when it really really wasn't, that was a bit more of a dilemma. Luckily they took the horse off the market before anyone came to view it.

I would tell the seller as politely as possible, and offer help to pts instead, that if I hear that the horse has injured whoever buys it, then I will feel compelled to give evidence in any claim against them that the horse was dangerous when it was sold.

 

[MagicMelon]

I'd just tell the seller that you are not going to go out of your way to tell people about this horse and tell tales, but if someone asks you directly you will not hesitate to tell them the truth

This. I'd make it clear that I didn't agree with what she was doing as its extremely dangerous for the buyer and the horse. But I can't imagine you saying that to her will make her change her mind on doing what she's doing.