Shooters and Snoogers

Lawrence’s stomach felt awful.  He had everything bet on this shot.  If he missed, Marvin would take everything he had.  Heck, Marvin already had everything he had.  But Marvin sure wouldn’t give it back unless Lawrence made this shot.
 “C’mon Lawrence!  You chickenin’ out?”
Lawrence scowled.  He knuckled down and launched his shooter.
It hit!  The last marble spun towards the edge of the circle.
 “It’s a snooger!” Marvin yelled.
 “No, see!” Lawrence shouted.  The marble stopped just outside the chalk circle.
 “I win! I win!  Gimme all your marbles!”
 “No!  I won them before!”
 “Nu-uh!”
 “Yuh-huh!”
 “Ow!”  
 “Ow!”
 “Mooooooom!!”