When a bathroom mirror went missing from Lovely Day on December 5, the owner of the beloved downtown Thai food diner, Kazusa Jibiki, was heartbroken. “It’s a really sad day for us,” she posted on Instagram. The staff was angry. The regulars were incensed. Clearly, this wasn’t just any old piece of glass. “Two friends of mine were like guardians, they really wanted it back to Lovely Day so they were on the case,” explained Jibiki, who moved to New York City from Japan more than 20 years ago.