I came across this telegram a few years back and got a kick out of it.
On this date, 144 years ago, President Lincoln sent his wife a telegram, which can be found in the Collected Works 6:256
To Mary Lincoln 
Mrs. LINCOLN Executive Mansion,
Philadelphia, Pa. Washington, June 9. 1863.
Think you better put ``Tad's'' pistol away. I had an ugly dream about him. A. LINCOLN
 ATS, IHi. There is no reply to this telegram.