Catching special "fish"

To make the fisherman job a bit more interesting, there could be really unique catches that can only be caught once a day. Think about a chance if 0.1% to catch any of the following: -Megalodon -Kraken -Monster of Loch Ness -Blue Whale -Lost 1.1 update -Submarine part -Mile high club part -Spongebob -Kaiju -Treasure chest

All of those are heavy and worth a lot of XP