And sorry for my poor memory BUT...

in the scene there is another Actor, (I forget who or which character he portrays)... that gets up when Lincoln begins his joke saying something like, "Oh God here he goes again"... Watch "Lincolns" reaction... it is perfection... both in acting skills AND in the portrayal of Lincoln. It takes the full scene for the full essence of who Lincoln was to be portrayed but that one moment one might say says it all. - JamesJM