Today's example of outdated joke material:
Ian: Mom, listen to my joke. What has spots and rides on a fire truck?
Mom: A fire dog?
Ian: No. A fireman with measles. What are measles?
This is where I had to explain what measles are, what a person looks like when they get it, and because of immunizations, why Ian has never seen or heard of it. Maybe the Popsicle company could have a contest for new jokes, then they wouldn't have to hire anyone for the job, and all kids eating posicles could understand the jokes they are reading.