The only time I'm not polite is when it comes to my children or animals. I draw the line there. I'll try being nice the first time and after that...well they've been warned.
Not sure I'd be that nice and polite. I'd be sticking my nose in their business. I'd make a big stink but that's just me. I can't stand to see people treat animals wrongly. It just sets me off and rubs me the wrong way. Have a little compassion and value for life....jeeesh!