Today is the first time that I mixed up a lunch date. Lee Ling and I are suppose to meet tomorrow (Sunday) but I thought it was today (Saturday). I had began to Whatsapp her in the morning with the message, "See you at 1PM!" Fortunately I scrolled up, re-read our previous conversation, and saved myself needless embarrassment by following up quickly with, "Tomorrow".
My brain was out to lunch - for sure.