I was asked to sub for Chef John with Mercer today, Wednesday, 5-11-22 for 1 hour from 2:30 - 3:30. There was a mix-up in the schedule (double-booking with me and Chef John) as I originally had Mercer on my schedule from 12:30 - 1:30 as did Chef John but Mercer had cooking with Chef John so I took Mercer the later hour as Chef John was unable to stay late.