"Get in there, you! No, ow, not that way, that'll pop out..."
*POUND* *POUND* *POUND* "Oh, yeaaaah!"
"Easy, let's get this nice and smooth, don't want any industrial accidents..."
"I need a peg."
*loud rhythmic thumping in time with Nine Inch Nails*
"Wait, wait, turn it over..."
"Nice and sturdy, just what we need."
"Keep them parallel--"
"Fuck, fuck, fuckfuckfuckfuckfuck!"
"I think we should've saved that one for last."
"Now where's my handy-dandy screw organizer?"
Pop quiz: Your housemate is:
a) having sex.
b) assembling something from Ikea.
Context prefers option C.