Invisible

"Doctor, there's a patient on line 1 that says he's invisible."
"Well, tell him I can't see him right now."
"Doctor, there's a patient on line 1 that says he's invisible."
"Tell him I can't see him right now."
I’m invisible. [Really?] Can you see me? [Yes]. How about tomorrow night?
It’s been a few years since the invisible man married the invisible woman.
Their kids are nothing to look at.
Do you know where in a hospital the invisible man can't hide?
The ICU.
How many Conservative economists does it take to change a light bulb?

None. The invisible hand does it.
Q: Patient: Doctor, sometimes I feel like I'm invisible.
A: Doctor: Who said that?
What is invisible and smells like carrots?
A Rabbit's flatulence.
What's invisible and smells like worms?
Bird farts.