Those people on Twitter are familiar with the 140 character limit for postings. That makes for condensed humor in its purest form.
I, however, need to come up with a joke that occupies no more than 24 characters and is worthy of being found on my dead body.
I have a nice discount on a Road ID, which is an anklet you wear while running or biking which carries important info like your name, contact information for people who can make decisions for you, allergies, etc. You get five 24 character lines. I’ve got my Name, 3 people to call in case of a problem, and NO KNOWN ALLERGIES. That leaves one last line for a joke to amuse the paramedics.