TIGARD, ORAlthough 4-year-old Mia Benson is currently amusing everyone at The Sundial Café, employee Kelli Doon wondered Monday how much longer patrons might be tolerant of her childish antics. "Yes, it was very cute when [Benson] was running around making choo-choo-train sounds," Doon said, wiping the counter with a rag, her eyes trained on Benson. "And everyone laughed when she asked that stranger if she could have his cookie. But really, she's been demanding everyone's attention for, like, 15 minutes. Is it time to step in?" Doon said she plans to move closer to the milk carafes, to better ascertain whether she should intervene.