You don’t want to leave humor writing too open to interpretation. You don’t want to shoot your message with a shotgun, spraying out ideas that lead to a variety of broad interpretations—this is the realm of fine art and other non-comedic modes of expression. In comedy, you want to shoot with a laser rifle, to avoid any possible misinterpretation of your message. If people misinterpret your message, they may not get your joke.
