Ex-Wife: [Mr M] has something to tell you.
Me: Ok, put him on the phone.
Mr M: Dad, did you know that if you have a whole bunch of kids, and you don't want all of 'em then you can kill one?
Me: Nope. I didn't know that.
Mr M: You can. And you get to choose which one you want to kill.
Me: Wow. So which one of you guys do I want to choose?
Ex-Wife: He just rolled his eyes and handed me the phone.