'Let's talk about a controversial subject!' My cult member, conservative FMIL always says this when she wants to bring up politics (because I have gotten in her grill about bringing up politics despite all of us asking her to stop).

So, FH has started slinging it back at her, 'Ok! Let's talk about abortion!' That gets her in a huff real fast. 

So proud of him, he is starting to grow a spine. 