My conspiracy-theory loving, ultra-right wing, thinks-Fox-News-is-fair brother (yes, the brother who's LESS obnoxious than my parents) plans to deny his son vaccines of any kind because they're a "scam by Big Pharma to ruin kids' immune systems". He uses the fact that I got a very very very mild case of chicken pox when I was a kid as "irrefutable proof" that vaccines don't work and the I-got-a-shot scar on our mom's arm that they "do more harm than good". I tried to teach him about how vaccines actually work, and he accused me of being brainwashed(!).
And a depressing update on the fundie relative: She stormed off Facebook with a final post saying that she "[is] DOING RIGHT IN THE EYESOF THE LORD WHO WILL PUNNISH YOU FOR YOUR TRANSGRESTIONS [sic]".
Edit: The fundie relative who's using TTUAC as a child-rearing guide. I felt the need to clarify because all my relatives are fundie.