Bev...I keep my hands in my pockets! And stalk folks until they're home then politely ask what it is, where they got it and does it propagate very easily!
And by then they often get the drift that I'm interested! (That's of course if things aren't in the alley under the fence...that's fair game - KIDDING! Only that once!)
I do look for chicks that fall off of the hens onto the sidewalk, again because someone else might just step on them...I know - I should place them back into the yard somewhere closeby, and most times I do!
Serse! Amazing plants, how nice of your dad!
I have a flap jack, they don't need much water, and are fine in medium light! The other plant is very cool! I love how diverse Kalanchoes are! Have fun with them!