Help with removing Ceiling Stain

[kimmy]

Can anyone give us suggestions of what to use to remove
Manganese Dioxide and Hydrogen Perioxide off our NEW lab ceiling (Genie in the Bottle gone wrong)

Tried general stuff but wont shift
new paint job looking like the go.

KIMMY & TRACIE

PS it was fun though

[sunray18]

Why clean it off?
You could invent some fantastic mystery about it and keep new students enthralled for years

[vlclabbie]

or tell them it's what was left of the last little cherub that experimented with things they weren't supposed to be touching........???

Or the last teacher that irritated you..............

[kimmy]

The guys here are all having fun saying no I did not do It KIM & TRACIE did - yes thats right they did the first big mess in the new labs .
Oh well some one had to I suppose and well i cant go crook if it was me.
I keep walking in there and just looking up and laughing.

KIMMY