Closed Signs. Using closed signs is an effective way to inform your clients that your business is closed temporarily, for lunch, due to weather or during the holidays. Stating the reason why your office or business is closed can reduce the frustration of your clients or visitors.
You are regarded as a responsible netizen when you imbibe the habit of leaving out-of-office messages. For employers and HR managers, it is worthwhile to teach this practice to your employees. Out-of-office emails show that you are polite and professional, lending credibility to your corporate culture.

I worked for a federal contractor back during the Great Recession when government offices were shut down/working with a skeleton crew. I still remember getting OOOs from almost every email address in the agency we worked at explaining they were on furlough & to contact one specific person if the issue was urgent. We all assumed this poor person was hiding under her desk, rocking back & forth, with her head in her hands.
I saved this one for the last example. It’s exactly what anyone would like to say when an associate messages them regarding any work during the holiday season. It talks about the ‘me time’ and also shares empathy for the sender. Especially, asking the sender to order the Pepperoni Pizza after stating the date of return is a fab movie. One of the best ways to display empathy is being humorous as it doesn’t put the other person into pressure- it makes way for helping them take the situation lightly!