Human Growth Hormone may cause people to grow to huge heights. They may then dress in silly costumes and go dancing around the Centre Ville of Brussels.

An unseasonably late maypole is raised in Brussels, on the anniversary of a wedding which took place in 1213. A posse of costumed giants accompanies the pole on its journey from the Sablon to the Grand Place.According to legend, a wedding party was ambushed by a gang of youths from Leuven. When the unwanted youths were finally dispatched, the happy couple were entitled to honour their saviour, Saint Laurence, by planting a may tree on his saint's day every year