Don’t rock the apple cart

This congruent malaphor mixes the similar meaning phrases “upset the apple cart” and “rock the boat”.    A good example of the use of this malaphor is in a description of an Upper West Side apartment for rent:

“Minimum Age Limit For Renters : If you are coming to NYC for a big party weekend, this is probably not your place. I have fabulous neighbors and there is a great, great staff and take great care to not rock the apple cart.”

http://www.vrbo.com/216973