There are many types of sharks. The first being the always fun & loveable misunderstood demon of the deep, I'm partial to the Great White myself. The 2nd fun shark is the loan shark, they'll loan you money when nobody nobody else will (at high % rate) pool sharks just hustlers trying to take your $ by making you believe that you've won the 1st few matches only to take your $ in the last game when the run the table. Bar sharks-an off shoot of the bar fly-they're just more aggressive. Land Shark by far the funniest,a creation of SNL in the middle of the 70s when it was still really funny, & yes it went hand in hand with the movie Jaws-the difference was it was on land & delivering pizzas--there are more so
This dude who would constantly relieve me of money at this joint I used to hang out at, because I would always bet him drinks at the pool table. There is another type of shark, that would occasionally be spotted by the dude who relieved me of my money who wanted HIS money by the guy who beat me at pool. (I guess MY losses at the pool hall, were paying off the first sharks interests payments.) The pool shark eventually lost more than his "cue stick" and the loan shark, the last I heard, got caught in an illegal Vietnamese gill net.