Actually, no. He didn't. I agree that waiting till the very last ball is a little strange, but waiting till the second ball of the last game is normal. If I were the opposing team captain, I'd wait till the last game too - because that way the opposing team can't get their sub to step out and just take an absentee score.
The way the capped leagues I bowl work - you go over, you forfeit everything.
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Bowlers are like puppies. The only difference is that someday the puppy will quit whining.
-- Found at Sam's Town Pro Shop