don't dip your pen in (the) company ink

don't dip your pen in (the) company ink

vulgar slang Do not have a romantic or sexual relationship with someone you work with. Do you really think it's a good idea to date your boss? I'm a big believer in "don't dip your pen into the company ink." A: "I've been flirting with Matt from accounting for a few weeks now." B: "Be careful. Don't dip your pen into company ink."
See also: company, dip, ink, pen
Farlex Dictionary of Idioms.
See also:
  • be (just) good friends
  • be good friends
  • a sugar daddy
  • sugar daddy
  • slash
  • slash fic
  • love affair
  • ship name
  • (have) got something going (with someone)
  • play hard to get