Although our surveyor didn't really need to fend off a wasp attack, we did file this in our building survey report, recommending the customer that they instruct for its removing but will also to undertake a Check out of your roof to ensure any probable entry factors are sealed off. http://www.harderfaster.net/?sid=01e25e821a0e4a48d3d35b573b10ed3a§ion=forums&action=showthread&forumid=3&threadid=327176