"Yes, I've noticed that," said Sammy, severely. "I suppose you were absent-minded the other day when you stung us with the putty balls."
"Let's see if he was absent-minded enough to dose his own sandwich that way," observed Frank, making a grab at the sandwich which Bob had on his lap.
Bob tried to head him off but Frank was too quick for him. He opened the sandwich and showed it to the others. There was only the faintest sprinkling of pepper and the merest little dab of mustard.
"That shows!" cried Frank, triumphantly.
"Caught with the goods," added George.
"The dear little absent-minded boy!" said Sammy.
Bob twisted uneasily.
"It's funny how those things happen sometimes," he ventured. "But say, fellows," he added briskly, "don't let's mind a little mistake like that. There are plenty of other sandwiches and you can fix them this time to suit yourself."
"Listen to him!" shouted Sammy.
"Of all the nerve!" muttered George.