The term "cone of shame" comes from that computer-animated movie "Up", where the inventor makes the collar box that translates dog language into human. One of the dogs winds up wearing a cone for some reason and all the other dogs are then heard snickering at and making fun of him having to wear the "Cone of Shame".
I hadn't seen the movie when, walking my dog during recovery from something or other that necessitated the cone, a toddler out with his mom said "Mommy, that dog's wearing the cone of shame!" The kid's mom explained it to me.
Moving on to ChuckH's post on avoiding cholla cactus, that might state the core principle of any first aid kit - insofar as possible avoid the places and situations that would require actual medical/first aid treatment.