In the 1970's version of Willy Wonka & the Chocolate Factory, when each child got a Golden Ticket (and later televised announcing it) we see Wilkinson who posed as Slugworth show up to talk to the children about the Everlasting Gobstopper and his deal for them to get it for him (the setup for the final test).
While the other 4 children were shown on TV, there may have been time between them finding/getting the Golden Ticket and Wilkinson, being shown on TV, discussing with them. However Wilkinson was waiting for Charlie shortly after he found the ticket, even though Charlie was told to run straight home.
So did Wonka know approximately where all 5 tickets were? How did Wonka or Wilkinson know the order in which the tickets would be found?