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Old 08-15-2002, 11:52 PM  
RK
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Join Date: Aug 2001
Location: In a Bunker
Posts: 868
What is the skylight made from?
If it's made from plastic, pour some HCL on it a few hours before they usually come, probably pH 3 will work ok, if you are serious go for pH 1 but keep in mind it is 20 times stronger. It should burn their hands a little but they will recover and wont know what it was (just wash it off with some baking soda and water when they leave) If the skylight is glass, don't do it, it will eat through the glass.

In that case use some sodium peroxide (Na2O2), just put a few pellets on the skylight or near it, you can try adding water but then it will not be as powerful. When they touch it, they will have what looks like little scratches on their hands and it will bother them for a while and it burns. Just wash it off with vinegar and water later. You will be able to get some in a local store in Waterloo or I could mail you some, it is not dangerous when properly sealed.

O yeah, don't forget to wear gloves and long sleeves.
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