I call it a wee dram only because he was able to put on a presentable persona to the public and keep his personal peccadilos hidden for a time. LBJ was a different kind of animal.
I remember reading that he would, at times, call a subordinate into the bathroom while he was taking a dump to discuss this, that or the other thing...making the person stand there while he finished his business. Sometimes he would arrange it so he would run out of bathroom tissue and force the unfortunate subordinate to go get him some toilet paper while he waited on the crapper. It was all a power trip for him.
A real class act that one.
I know of other anecdotes but I can't lay my hands on the book at the moment.