FarmerCharlie, I LOVE to garden and 90% of my spare time is spent doing just that!! With that being said, I have had angel trumpets in my flower beds (actually a few in about all of my flower beds) for years now... Yes, they are very poisonous... Now, the thing about them is that they have been used for centuries just for the sole purpose of poisoning people... Way back in the day I'm sure it's safe to say that many people were buried with the towns folk thinking it was such a shame "ole Henry" got the flu and died from it, when in fact "ole Harriet" got tired of him and fed him some angel trumpet dish under the disguise of "turnip greens"......Lol... But seriously, I have grown it for several years now and I have 2 small children, neither have ever wanted to eat it, as it doesn't look to appetizing for one and two my kids have been good about not putting stuff in their mouths... I know some kids will pop anything in there if given the chance.. Also, none of my animals (tame or the wild ones) we let run around here have ever nibbled on it either... I have actually had a plant one summer that was infested with Aphids... I finally clipped all the leafs off of the plant and sunk them in my pond in hopes of drowning the bugs... The fish in my pond didn't try to eat it either... I feel safe planting them anywhere I know they'll be happy. They are beautiful plants and if you cut them back at the end of the season then they come back again the next year... If you have young kids around that DO like to sample a little bit of everything then I'd be a little nervous about having them, but if you don't then I think you'll be safe... As far as animals/wildlife goes, I think most animals know what can and cannot be munched on.
Also, one more thing... It's been said that unless it is boiled or cooked in some way or another then it is not deadly, eaten raw it will only cause a serious tummy ache... I'm still trying to talk my hubby into letting me verify this theory... No luck yet! Lol
Sorry for such a long reply!!