dancervention 

When someone's dancing is so bad that it needs to be excised from the dance floor; the ensuring process is a dancervention. Usually instigated by friends of the dance-challenged individual to save him/her from further embarrassment.

Harry is a great guy, but that running man he just did out there requires a dancervention to get him off the floor!

dancervention by The New Musicologist August 8, 2009

Dinnervention 

Noun: an intervention disguised as a harmless meal.

I was enjoying a basket of cheddar bay biscuits when all of a sudden my mom starts crying and my dad is all "you have a drinking problem, you're throwing you life away." Way to ruin Red Lobster with a dinnervention.

Dinnervention by Scoldielocks July 12, 2011