What Is The Best Thing To Say To A Phone Scammer Who Tells You They Have A Legal Case Against You & Will Arrest You If You Don’t Send Money?

I always ask them for whom they are calling, and they say the owner, stop playing games the police are on the way or some such. I then put them on mute and return speaking French, if they answer in French, I tell them to hold on and come back with my broken Spanish or Italian. I have also come back on the line in German and that seems to scare them for some reason. LOL