Not me but ....
.. people I lived in halls with at university. WE had a stupid wall where we'd write down anything stupid that people came out with and I was particularly bad for trying to fool people into believing anything and everything. I would even occasionally then try to convince someone that something that was indeed a fact was a fact - then because of the nature of my making them believe random things, they'd then not believe me and decide that I was making this fact up and no-way could it be real!

Topics of gullibility I can remember off the top of my head:
Tesco sell flat pack houses now don't they?!
You can buy do it yourself haircuts now from tesco too.
gullible lass reply:- OMG, you really can buy everything from tesco!

There's this thing called the channel tunnel that goes under the sea between england and france (she wouldn't believe us on this one!!!)

Dogs lay eggs

Tried to convince her that duck-billed platypi are real creatures (She wouldn't believe me!)

(I know not all are gullible but funny nontheless)
( MadAdamUk was last alive on, Fri 22 Aug 2008, 10:52, Reply)