As Elon Musk looks to make Tesla (TSLA) the leader of the automotive industry, the CEO has come up with a way to handle meetings that may be a departure from the way other automakers are approaching them.

In an email obtained by Jalopnik, Musk wrote to employees last year saying, " Excessive meetings are the blight of big companies and almost always get worse over time. Please get of all large meetings, unless you’re certain they are providing value to the whole audience, in which case keep them very short.

For the times, when an employee is invited to a meeting where they then realize they are not needed, Musk said, "Walk out of a meeting or drop off a call as soon as it is obvious you aren't adding value."

While some may consider up and leaving a meeting downright rude, Musk said in his email that, “It is not rude to leave, it is rude to make someone stay and waste their time.”

Musk’s third rule focuses on the frequency of meetings. In his email, he wrote, “Also get rid of frequent meetings, unless you are dealing with an extremely urgent matter. Meeting frequency should drop rapidly once the urgent matter is resolved.”

Shares of Tesla stock were down 6.31 percent as of 3:39 p.m. ET on Wednesday.

Elon Musk Elon Musk, co-founder and Chief Executive Officer of Tesla Inc., speaks. Musk says he might be interested in using cryptocurrencies. Photo: Robyn Beck-Pool/Getty Images