this is from Ireland. Leprechauns are known to be mischievous and schemers. you have to be very careful not to get near them or still from them. so if you want to try your luck my advice is don't. so stay away from the end of the rainbow. Most Leprechaun legends can be traced back to the 8th-century tales of water spirits which were known as 'luchorpán' which means 'small body.
leprechauns look like a fairy-like creature in Irish mythology. some people even say if you catch a leprechaun they'll grant you a wish. Their name is thought to come from the word "luchorpán," meaning small body- no surprise there as they are said to be only 2-3 feet tall.
some people also say that If a grained substance is poured in front of them, leprechauns are forced to count each individual grain. This could be salt (as used in the series), sugar, sand, or anything with grain. Their weaknesses are also the same as other fairies, especially iron.