turps

Thank you so much for the tip, and the link to something that will work well. It's appreciated as when I attempted to use the hose it didn't have enough power and I really underestimated the length of my arms, so the egg is still there.

I wish they could be caught and put to community service cleaning up such messes made by other people; after about 100 hours, I bet they'd never want to deface someone else's property again.
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I agree with you completely. It makes no sense, I mean, what enjoyment do you get throwing eggs at windows?