Patrons swarmed the Royal Palace Thai restaurant on Howard Avenue on Monday afternoon for a good cause. For the rest of the month, the restaurant's owners have pledged to open their business on Mondays, usually their day of rest, and donate all lunch and dinner profits to tsunami victims in Thailand. Tapanee Damrongwatanasuk, a Thailand native who owns the restaurant with her three sisters, said the community's response has been overwhelming. So far, they have raised about $12,000 from donations, meals and tips. Her goal for the monthlong effort is $20,000.