Yes. I spoke immediately with the manager-on-duty. He was wery sorry and polite. He took off the service charge and also first courses from the check.
BUT I do not know if he was also involved or was the waiter alone.
Because of that I later tried to send an e-mail to the restaurant. There is one e-mail address in their homepage www.duccasf.com. It returned to me since the address is not in use.