I sort of have one. I have had a few bonsai some of them were very cool and were doing well... til I moved from Canada to the states and couldn`t bring them with me. Not sure what happened to them
I left them with my dad. But I had successfully grown them for a year. I have tried juniper ones 3 times they are supose to be one of the easiest - we do not get along I killed them all despite my best efforts. In my last attempt besides the juniper I had another one I can't remember what type it was but it started to rot because I got this fungus fly infection in my other house plants and it spread really fast and I couldn`t save the tree. I did however save a branch from it and
it is growing still so technically I haven't totally killed that one yet.
Fungus flies are the bane of my existence.