I have broken a few Mego since I started collecting, nothing major though. I broke the knee pin's of my Fonzie mego after about 10 seconds of owning one, as soon as I opened the parcel and took him out I heard some bit's of plastic fall on the floor and I checked to see it was his knee pin's. Aside from that the only other real damage I did was my Potsie mego (Happy days must be accident prone) fell in my fish tank by accident.
I havent broken any thing too valuable yet, but my question is has any one caused some serious damage to their collection? Such as accidently sitting on a carded figure? Or accidently ripped the cello from a boxed Mego? Or worse yet broken the mask of a RM robin?