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He passed Agnes outside of the Vision Residence, and she jokingly shot finger guns as him after he joked about simply being a messenger.
When Maximoff and her sons, Billy and Tommy Maximoff, went out looking for their dog, "Dennis" passed them and told them not to worry, as their mother would not let him get far.
Later, "Dennis" and the other Westview residents paused to witness Maximoff using her powers in broad daylight against Monica Rambeau. He and the others then resumed going about their business once Maximoff was taken away by Agnes.
Back to Normal Life
Later, he passed Maximoff in the town square and told her not to shoot as he was just a messenger. After Agatha Harkness removed the spell, he and the citizens confronted Maximoff about her actions and how they felt.
She eventually took down the Hex, freeing "Dennis" and all of the citizens. When she returned to the town square, he and the citizens glared at her.