If there was a world championship in worrying, Tab would take gold, silver and bronze. He worries from the moment he wakes up in the morning until the moment he falls asleep (which sometimes isn't until he's spent the whole night lying awake worrying). When Bin Weevils come into his shop, he worries. When no Bin Weevils come into his shop, he worries! Basically, Tab worries a lot.