This Hilarious Office Conversation

Boss to an employee: Do you believe in life after death?

Employee: Certainly, not! There is no proof it.

Boss: Well, there is proof now. After you had left early yesterday to go to your uncle's funeral, he came here looking for you! 

That is clearly not a smart way to lie! If you need to use death as an excuse for missing the work, create a fictional family member and kill them! Remember all those characters you have created and the dates of their death, so you can answer your boss confidently when he questions about the death the next time.