This is unconfirmed, but I heard there are highly skilled/trained frogmen who work under the dark of night recovering pre-Rap Warts lost by fishermen who lack a suitable lure retriever. Each night they scour the nooks and crannies of Table Rock, taking their bounty back to headquarters, which is covertly tucked away beneath the floor of the lake (this is also where the black helicopters are kept). The Warts are then repainted and sold on eBay for exorbitant prices, and the proceeds are forwarded to the United Nations and various terrorist outfits (ISIS, the Taliban, etc.) for the not-so-distant day when they overthrow the federal government and we all start wearing towels on our heads and bathing only once a month.