Try mermaid rose. It gets huge but you can also prune to desired size.
Well owning large dogs is a huge deterrent. I own a 100 lb. Mastiff, a 70lb bulldog and a puppy of unknown mix that will probably mature around 100 lbs. I have a neighbor thats a real piece of work pretty sure hes dealing illegal substances, huge dude but terrified of my dogs, like rediculously terrified. Sure someone could shoot a dog but multiples at once? Prob not.
I think ability to grow food is the #1 most important thing! You literally can’t do anything else without calories. I’m a professional grower (I own a small farming business besides my “real” job). I agree with the other commenter apples are a PITA, unreliable at best. I’d grow ground cherries instead, an heirloom forgotten fruit. Maybe I should teach growing, its easy as long as you pay attention to sprouting requirements (light, no light, cool temp, warm temp, humidity). Its not rocket science but I think people are incredibly intimidated by growing. I can grow anything honestly but yes sometimes I kill stuff but I tweak my method and start again. For example microgreens start to finish take only 12 days. That’s an amazing nutrition source ready in less than 2 weeks. Also remember you need to know how to gather seeds! Another lost art. I’m also taking courses on medical plants, so many are packed full of vitamins, natural antiseptic or even antibiotics. I’m also growing medicinal plants myself or gathering them. There are plants currently being researched as replacements for our current antibiotics due to bacterial resistance. A much better idea than stockpiling medicine that expires. Also don’t forget cold frame growing with cool crops. I watched a video by a guy in zone 4 in Canada grow kale and other greens year round with a cold frame and row cloth. Growing and gathering is a huge important subject that alot of people know nothing about because our society is based on manufacturing food.