Hello. Thank you for contacting [Business Name]. Unfortunately, we are not currently available at the moment. Our regular office hours are Monday through Friday, 8 am to 4 pm, closed during the weekend. Please leave a message along with your name and number, and we’ll get back to you as soon as possible.
Can’t take your call, I'm hiding from the men in white coats. We've been playing hide'n'seek for weeks, and they still haven't found me. Tee Hee! Leave a message?

Using your cell phone to record a voicemail message isn't always easy. Between remembering what to say and getting the right timing, it's tricky. But your phone does have a playback option, and it's easy to listen to and review your message. For some people, though, cutting off the end of a message is a funny way to trick people and catch them off guard. In most situations, callers won't know it's intentional and will think you're far less than tech savvy. Definitely not an impression I'd want to make.
A word of warning: These greetings will not do you any favors if you're in the midst of a job hunt or work in a conservative industry. Always remember your target personas. If there's a chance they won't appreciate your sense of humor, opt for a straightforward greeting instead.