On New Year's Eve a group of (most likely muslim) vandals found it funny to push a small electric car down the stairs of subway station Clemenceau in Anderlecht, Brussels. Do note that this video may have been edited by adding "Allah Akbar", which led to accusations of Belgian government station removing this from the video, but it appears to be the other way around: the original video uploaded did not contain that.
Due to the increased terror threat, there were also no fireworks in Brussels, so muslim youths thought it would be fun to use their fireworks to set a Christmas tree on fire in Anderlecht, while shouting "Allah Akbar", which this time IS genuine and WAS omitted by TV stations. So you see: muslims DO like Christmas and Christmas trees.
About five cars were also torched in Brussels, which seems child's play compared to France where muslims have made it a tradition to torch around a thousand cars on New Year's eve for the past several years at least.
So all in all, Belgium has been relatively spared from muslim "celebrations" compared to countries like France and Germany.