All the the colors they make yaks in these days like "Yum Yum Yellow", "Mango", "Cherry Red" and some of the other bright one's out there remind me of a bag of Skittles....no wonder why they seem to appeal to GWS's; Sooner or later they will figure out that there is something softer on the other side of that hard candy colored shell.... Just like us they learn through trial and error
FYI for those who might be thinking they might want to have a way to repel Sharks; The Navy has used Sea Dye Markers with chemicals in them that repel Sharks for years. Every Sailor and Marine aboard Ships has a life Jacket assigned to them with the shark repelling dye pacs attatched to them. They have been studied and proven to work at the tax payers expense.
There is a place that sells a version of the pacs to civilians here;
http://www.adventuresurvivalequipmen...repellent.html