Joe has no reason to believe he's in danger if he's next door. That just makes joe a danger to those around him. Not to mention terrifyingly irresponsible.
but what if bucky locks himself out, wearing a ski mask with his axe in his hand, and is pounding angrily at "'Joe Horn's" front door screaming that Joe is a racist, and demanding "Justice For Deyfon"?
what if your neighbor, the crack addict crawls through your window by mistake, intending to rob the house next door but got turned around, due to being a crackhead?
what if an "Innocent Child" :
is just stealing your car to "do hoodrat stuff"?
what if Deyfon didnt plan on harming "Joe Horn" at all, and was just gonna steal his shit? shouldnt Deyfon be allowed to make a living?
what if it's all a huge put up job and "Joe Horn" is actually the burglar and he just used the natural racism of white people to conceal his perfidy?
what if what if what if...