Anytime a single guy hangs out with a married woman there are ru...
Lily: Anytime a single guy hangs out with a married woman there are rules that must be followed. Rule number one...
Barney: Don't use the husband's condoms, that's just rude.
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- Characters:
- Barney Stinson, Lily Aldrin
- Episode:
- How I Met Your Mother Season 6 Episode 11: "The Mermaid Theory"
- Show:
- How I Met Your Mother
- Related Quotes:
- Barney Stinson Quotes, Lily Aldrin Quotes, How I Met Your Mother Season 6 Episode 11 Quotes, HIMYM Quotes
- Added by:
- Matt Richenthal
- Added: