"I just thought of a little joke I can play on the fellow who owns this," chuckled Andy, as he disconnected one of the high-tension cables.
"Oh you and your jokes!" objected Frank, somewhat sternly. "You'll get more than you count on, some day."
"Oh, I'm only going to fix things so that when he turns on the batteries and starts to turn over the fly wheel he'll get a shock," explained Andy. "I'll just cross these wires and——"
Andy Racer didn't finish what he was going to say. Instead he jumped back as though he had been stung by a hornet, and let out a yell:
"Wow! Sufferin' cats!" he cried, holding one hand in the other and prancing about.
"What's the matter?" asked Frank in some alarm.
"I got a fearful shock! The wires were short-circuited and I didn't know it! Smoked mackerel! I got a big charge of electricity!" howled Andy.
"Serves you right for meddling with other people's boats, and trying to play jokes on them," declared Frank, as sternly as he could, though he had to laugh at the wry face Andy was making as he danced about.
"Huh! Guess you wouldn't think it funny if you had about twenty-seven hornets after you!" grumbled the younger lad.
"Well, maybe you'll get over playing jokes some day," predicted Frank.