Tony Hale is a devout Christian and is a complete retard when it comes to swearing. The script called for him to swear for about 30 seconds and he just couldn't do it.
“I feel like there are women who are genuinely born to be mothers, and women who are born to be aunties, and women who really probably not should be allowed near children. The tragedy that happens is when any one of those women ends up in the wrong category.”