How have I never noticed janitor blacked out drunk on the floor behind Kelso in S4 E20

My Boss's Free Haircut. Around 13 and 1/2 minutes in when Kelso breaks the door down into the gastric bypass patient's room, Janitor's legs can briefly be seen laid out motionless on the floor next to his mop after having just been standing, albeit shitfaced, next to Bob.