Residents in Mansfield were put on high alert this weekend over a string of unnerving incidents that have locals sleeping with one eye open. The Mansfield Police Department reported two cases of an unidentified individual knocking on windows in the wee hours, rattling nerves and raising concerns about safety in the otherwise quiet town. Although whispers of a TikTok challenge bearing a striking resemblance to the events have been circulating, authorities have yet to confirm any connection.