A JOKE THAt TURn a JOKE

well,
u could say that im the funny man in the class..
.....
so on wednesday,
its my turn for the presentation... topic " chemistry in our daily life "
i decided to tell a joke..
since im the funny man...
and trying to score extra mark by doing so.....

its starts like this..

" a very good morning to ms.chen our physical chem lecturer, and to all my friends that are present here. My topic for this chemical presentation today is about.................................................. ...................................................................."" SEXXX"" ..........................
"pause"
....................................."just joking, that was just to get ur attention....".......................................

only few of the guys laugh...
others just look at me as if i have just said the most ridiculous thing they have ever heard in my life....
not even a smile from their sweet faces...
....
haha...
it was more funny to thk of the scenario that just happen...
i stood there telling a joke and got the coldest response any1 ever get, DURING PRESENTATtion...
i felt like, making a FOOl out of myself...
i guess those guys are chinese EDUCATED..
cant get my english JOKES...
no hard feelings though ..
and im 60% pretty embarest and 40% damn proud i have the balls to say tat joke in the 1st place...
hahaha...