wilbur was in Amsterdam with his friends, Tommy, Charlie, tubbo and Phil, they were doing a boating vlog, you were just walking along with your dog, initially, wilbur proceeded to get out of his boat and his friends were also there, just vlogging and laughing at wilbur for getting out, he caught up to the boat and jumped back in, he was also the driver of the boat so anyway, once they got out the boat, your dog jumped in the lake.