What is the law where you live concerning use of Aikido or martial arts in defending your property, yourself or loved ones?
In the state of Ohio in The United States from http://tenchi-kenpo.com/bbpapers/kcookson.html
"Ohio law clearly and unequivocally recognizes the right of self-defense. When an otherwise innocent person has a bona fide belief that he is in imminent danger and further believes that his only means of escape from such danger is the use of deadly force, and when no duty to retreat has been violated, then the defense is available. For the skilled martial artist, he will be need to exercise extreme caution before employing his skills to be certain that his use of force is appropriate under the circumstances. Moreover, as a trained fighter, he will be expected to recognize danger at its early onset and to take appropriate actions to retreat, if necessary."
Nothing productive to contribute....except in Bexley, Ohio "Ordinance number 223, of 09/09/19 prohibits the installation and usage of slot machines in outhouses."