The Obnoxious Stranger (2021)

While taking his two young children to pick up their brand new phones, Mr. Watkins is approached by a strange man who tries desperately to buy the phones from him. After repeatedly refusing the request this man follows Mr. Watkins and his kids to their car. When his attempts to buy the phones fail again, this obnoxious stranger walks behind Mr. Watkins' car and fakes an injury.