Should you put it in?
A joke can break the ice and make a presentation more memorable. But, and there is but, be careful with hardwiring your jokes inside the slides. Sometimes, you start your presentation and you will find that the "vibe" of the room at that moment is just not good to crack a joke. If you know your funny but maybe inappropriate slide is coming up, you need to be a master of the presentation remote control to save the meeting.
Also, when you are sending a deck ahead of the presentation, and you are not in control in what circumstances the recipient will be reading it, it is better not to include that hilarious image.
So, the best is to keep humor verbal, add it in your story if you feel that moment is right.
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