Yeah, ask them if they think dogs that are over 20lbs are ok as pets. Then when they say yes you can point them towards the overwhelming amount of dog attacks and fatalities. Even when you account for less people owning pythons the statistics still pan out that dogs are 2x more likely to kill you. With that said though, getting killed by a dog is just about as likely as getting killed by lightning. If they think people shouldnt own certain animals because they are dangerous, ask them if they also think people shouldnt own cars as that is your best chance for suddenly dieing not due to health.