almost entirely used in negative intention (don't want to) indicates a person wanting to inform another person (or people) without overly causing displeasure
"I don't want to shit on your bonfire, mate, but that isn't the case."
"I don't want to shit on your bonfire, but you're idea sucks."
"I don't want to shit on your bonfire, but you're idea sucks."
by barnabos July 11, 2008