Found posted in a humor newsgroup (rec.humor.funny)
Two guys are driving along an outback road and then they drive into this
small country town, driving past the local town hall they notice that there
is a B&S (bachelor and spinster) ball on. Deciding that they'd like to go
in and try their luck with the local ladies they parked their car a few
blocks away and then had a look to see what they had in the way of formal
clothes in their bags. They both manage to find a pair of half decent black
pants, black shoes and a white shirt. There was a problem though as only
one of the guys had brought a bow tie, all be it a little beaten up it
would still do. Not really having any other options they decided to try and
get past the bouncers with one of the guys missing a bow tie. They went up
to the door and immediately the bouncer stopped them and said "No mate you
can't go in... you need a bow tie" and then told them to get lost. They
then went back to the car and tried to find something that they could use a
as a bow tie. After much looking they tried using a jumper lead for the car,
wrapping it around the guy's neck and making a bow out of it. They then
proceeded back to the hall and approached the same bouncer, this time he
said "Ohh I don't know if can let you in dressed like that" to which the
guy wearing the jumper lead as a bow tie said "Come on, I am only in town
for the night and we are just looking for a good time" and then the bouncer
said "OK...I'll let you in....just don't START anything"