How can I prove Leprechauns do NOT exist?

While it is possible to prove that something does exist, it is generally NOT possible to prove that it does not exist. You might be able to develop a theory and provide evidence to support your position, but that is not proof.

But be careful. If the King of the Leprechauns sees your post, you might just get proof that they DO exist. Not that anyone else will believe you though... ;)

You can't prove the non-existence of anything. Hence the persistence of Bigfoot, Nessie, and various religious and mythical figures.

Hunt them down, kill them all but one and make him deny on national TV his own existence. Or put him in the Bible, I'm sure the pope will agree.

what r u talking about leperchauns do exist and im not trying to be funny i just know they do

Ask the fictional character called god.

find the end of the rainbow

Why do you mean ,they don't exist!!

but they do, haven't you ever seen the movie

steal his lucky charms.

any one who thinks they do is __________ fill in the blank