They forgot a few.
The Shadowboxer - twerps that stand around in between sets throwing hands in slo-mo like they are filming an intro video for UFC
The Stinky Guy - the dude that reeks of BO so bad that he leaves a cloud fume in his wake that doesn't disperse for 3 minutes after he passes
The Thousand Yard Stare Guy - dude that stands there staring off into space all the time. The wheel is turning.. but the hamster is dead
The Spazztastic Guy - dude that stands there - with no headphones - but still bobs and nods his head nonstop to a sound track only he can hear in his head
The Baller - the dude that spends more $$ on matching workout clothes, including shoes and head bands in a week than his membership costs in a year
The Bang Bros - they surround the pec dec like it's a ho at a gang bang before running off as a pack to do curls in the squat rack
The Two Face Bitch - dresses in provocative clothing, scantily clad and then bitches non stop about people looking at her
The Has Been - 40+ years old still reliving his high school glory years where he actually got to play a full quarter in a football game before the coach pulled him
Long Tooth - perma juicer. Dude juiced his whole life, never competed, never dieted, bald, skin is perma red all over, yellow teeth and still doing 1/8th reps on the leg press