*giggle* "FZZT!" X) So considerate to take off the black mark.
I've always wanted a magic power that goes "FTZZT!"
I have a cuckoo clock with those long chains that you pull down to wind it. I somehow managed to plug a cord into an electric outlet with the chain BETWEEN the prongs of the plug accidentally... when the clock pulled the fob on the end of the chain up tight against the prongs of the plug, it made a big FTZZZZT, and made a mark, just like that one, on the wall. (Fortunately, the a wall was made of cement)... and I am hardly magic at all.