because even when drunk their jokes are still not even remotely funny, eg

'A drunk Arab went in his car to the washing place, the Indian said to him "wash",
He replied "no problem, iron?"'

and more such outstanding wit can be found at:
http://www.ummah.com/forum/archive/index.php/t-40199.html

"Deaths in the Bible. God - 2,270,365
not including the victims of Noah's flood, Sodom and Gomorrah, or the
many plagues, famines, fiery serpents, etc because no specific numbers
were given. Satan - 10."