Wasgij Original #45 1000pc Puzzle: Moving Day

Enjoying a well-earned break, Granny Wasgij is on a stroll through Old Amsterdam. It’s moving day for one of the locals, but something has caused chaos by the canal and panic is spreading through the crowd. Dogs are barking, cats are shrieking and brakes are screeching. Is everything going to plan, or are hopes of a smooth move starting to slip away?  What has Granny seen that has panicked the pedestrians? That is the image you need to puzzle.