There are quite a few question marks about the veracity of this story. See my update here: The Marcel Kalmann story.
The following story is not related to Islam. It was reported by Joods Actueel, a Belgian Jewish magazine.
Marcel Kalmann is 64 years old. Born January 1st, 1944 in Auschwitz-Birkenau, he is the youngest person to have survived Auschwitz. After the war he lived in shelters, where he was also abused. As a young man he emigrated to America and is now a professor.
About two weeks ago Kalmann visited the city of Bruges. On the last day of his stay he entered a famous restaurant: Le Panier d'Or and asked for a cup of coffee. He was the only client at the time, and besides him there were a barman and two waiters. When one of the waiters noticed his yarmulke he turned to him and barked out: "We don't serve Jews here, out!" The professor was completely confused and left the cafe as quickly as possible, the waiter yet screaming after him: 'out, OUT!'
Shocked by the attack, Kalmann walked into a nearby restaurant. "That man came in here with tears in his eyes." says waiter Dean Stalpaert to Joods Actueel. "We apologized to him for the attack, though we had nothing to do with the affair. We felt dreadfully bad that something like this could happen in our city. We immediately called the police."
They didn't want to come along and required the man himself to the come to the police office (3 km further). What happened then is too crazy for words. The young police officer made it clear that she didn't believe his story and she didn't let him give his statement in English although Kalmann explicitly and many times asked to report the facts in this language. Another policeman who was called in (probably a superior) got involved with the case and began to scream and rage against the man that he must give his statement in Dutch. The professor asked to lodge a complaint for antisemitism to which he was told that "this doesn't exist in Belgium".
The police questioned the man and ignored the explicit request of the man to lodge a complaint. Somewhat later Marcel Kalmann left the police office frustrated and angry, without having lodged a complaint and with an interrogation sheet that included things he had never said.
Several days later Kalmann contacted Joods Actueel to follow up on the case. He intends to lodge complaints against the police and the waiter involved.
According to Joods Actueel, the waiter was not interrogated by the police. Joods Actueel contacted him and he didn't deny that he kicked out the man, but said he did so because the man acted peculiarly. Realizing that there might be consequences the waiter said that he was willing to apologize to the professor if he would so wish.
The tourist department of Bruges will open up a complaint file on this issue. Restaurant owners in the area were shocked to hear that the professor was charged 6.5 euro (three times the going rate) for his coffee and concerned about how such treatment could reflect on their city, but according to Joods Actueel were less concerned about the fact that a man was kicked out due to his religion.
Source: Joods Actueel (Dutch)
See also: De Standaard (Dutch)