When does a joke turn into a dad joke?
When the punchline becomes apparent.
Why can't your nose be 12 inches?
Because then it'd be a foot.
I know you're probably tired of lame jokes, but I'd like to say one more again.
One more again.
For anyone who stumbles in here wondering the same, there's a very comprehensive interactive map showing the incidence of vaccine-preventable disease since 2008. It can be found at http://www.cfr.org/interactives/GH_Vaccine_Map/#map
Now what proportion of these cases are due to parental...