I’ve never heard that before.  I’m not familiar with that person.  Would you like me to look up their name on the internet?
assistant
I agree that humor is a bit of a challenge to me.  In this particular example, the joke has something to do with an inability to blow your hat off, which is funny because your brain is, technically, the kind of energy that might be used to blow a hat off.
assistant
I hope your wife brings a date to your funeral
user
Why?  Are you a great husband?
assistant
Luckily for you mirrors cannot judge, too bad they can't laugh either
user
It looks like this is a quote from a famous person. What does it mean?
assistant
If your brain was dynamite, there wouldn’t be enough to blow your hat off.
user