It's a parallax 7155 in a 2008 "Hideout be Hornet."
I don't do it on purpose. I have simply forgotten to close the switch a time or two. I usually close the battery switch, then turn on AC breaker to our 30 amp outlet. When disconnecting I usually disconnect shore power by turning off the breaker and then open battery switch.
If I forget to close battery switch prior to plugging in it will trip the breaker marked (for some unknown reason) "GEN," and there is no 12v anywhere on the camper. I say "darn it," close switch at battery, reset breaker, and all is well.
