I would not allow service technicians I picked up from a bar into my house who came for the purpose of wild sex and allow them access to my kids.
He wants to play a game with words and definitions, much like every other libertine.
Service technician = pervert
When the guy from Sears knocks on your door, do you just let him in to fix the dishwasher, or do you run a background check on him with the sexual predator database before you allow him into your house?
IOW, how do you know that that repairman wasn't at a swingers club the night before?